Import Tcl-core 8.6.6 (as of svn r86089)

2017-05-22 16:09:35 -05:00
1861 changed files with 761960 additions and 25952 deletions
--- a/10369
+++ b/10369
--- a/ChangeLog.1999
+++ b/ChangeLog.1999
--- a/ChangeLog.2000
+++ b/ChangeLog.2000
--- a/ChangeLog.2001
+++ b/ChangeLog.2001
--- a/ChangeLog.2002
+++ b/ChangeLog.2002
--- a/ChangeLog.2003
+++ b/ChangeLog.2003
--- a/ChangeLog.2004
+++ b/ChangeLog.2004
--- a/ChangeLog.2005
+++ b/ChangeLog.2005
--- a/ChangeLog.2007
+++ b/ChangeLog.2007
--- a/ChangeLog.2008
+++ b/ChangeLog.2008
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,410 +0,0 @@
-# Makefile for zlib
-# Copyright (C) 1995-2017 Jean-loup Gailly, Mark Adler
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile and test, type:
-#    ./configure; make test
-# Normally configure builds both a static and a shared library.
-# If you want to build just a static library, use: ./configure --static
-
-# To use the asm code, type:
-#    cp contrib/asm?86/match.S ./match.S
-#    make LOC=-DASMV OBJA=match.o
-
-# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
-#    make install
-# To install in $HOME instead of /usr/local, use:
-#    make install prefix=$HOME
-
-CC=cc
-
-CFLAGS=-O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DZLIB_DEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-#           -Wstrict-prototypes -Wmissing-prototypes
-
-SFLAGS=-O
-LDFLAGS=
-TEST_LDFLAGS=-L. libz.a
-LDSHARED=$(CC)
-CPP=$(CC) -E
-
-STATICLIB=libz.a
-SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.2.11
-SHAREDLIBM=libz.so.1
-LIBS=$(STATICLIB) $(SHAREDLIBV)
-
-AR=ar
-ARFLAGS=rc
-RANLIB=ranlib
-LDCONFIG=ldconfig
-LDSHAREDLIBC=-lc
-TAR=tar
-SHELL=/bin/sh
-EXE=
-
-prefix = /usr/local
-exec_prefix = ${prefix}
-libdir = ${exec_prefix}/lib
-sharedlibdir = ${libdir}
-includedir = ${prefix}/include
-mandir = ${prefix}/share/man
-man3dir = ${mandir}/man3
-pkgconfigdir = ${libdir}/pkgconfig
-SRCDIR=
-ZINC=
-ZINCOUT=-I.
-
-OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
-OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
-OBJC = $(OBJZ) $(OBJG)
-
-PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
-PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
-PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
-
-# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
-OBJA =
-PIC_OBJA =
-
-OBJS = $(OBJC) $(OBJA)
-
-PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
-
-all: static shared
-
-static: example$(EXE) minigzip$(EXE)
-
-shared: examplesh$(EXE) minigzipsh$(EXE)
-
-all64: example64$(EXE) minigzip64$(EXE)
-
-check: test
-
-test: all teststatic testshared
-
-teststatic: static
-	@TMPST=tmpst_$$; \
-	if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
-	  echo '		*** zlib test OK ***'; \
-	else \
-	  echo '		*** zlib test FAILED ***'; false; \
-	fi; \
-	rm -f $$TMPST
-
-testshared: shared
-	@LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
-	LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
-	DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
-	SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
-	TMPSH=tmpsh_$$; \
-	if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
-	  echo '		*** zlib shared test OK ***'; \
-	else \
-	  echo '		*** zlib shared test FAILED ***'; false; \
-	fi; \
-	rm -f $$TMPSH
-
-test64: all64
-	@TMP64=tmp64_$$; \
-	if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
-	  echo '		*** zlib 64-bit test OK ***'; \
-	else \
-	  echo '		*** zlib 64-bit test FAILED ***'; false; \
-	fi; \
-	rm -f $$TMP64
-
-infcover.o: $(SRCDIR)test/infcover.c $(SRCDIR)zlib.h zconf.h
-	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/infcover.c
-
-infcover: infcover.o libz.a
-	$(CC) $(CFLAGS) -o $@ infcover.o libz.a
-
-cover: infcover
-	rm -f *.gcda
-	./infcover
-	gcov inf*.c
-
-libz.a: $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
-	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
-
-match.o: match.S
-	$(CPP) match.S > _match.s
-	$(CC) -c _match.s
-	mv _match.o match.o
-	rm -f _match.s
-
-match.lo: match.S
-	$(CPP) match.S > _match.s
-	$(CC) -c -fPIC _match.s
-	mv _match.o match.lo
-	rm -f _match.s
-
-example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
-	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c
-
-minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
-	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c
-
-example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
-	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c
-
-minigzip64.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
-	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/minigzip.c
-
-
-adler32.o: $(SRCDIR)adler32.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)adler32.c
-
-crc32.o: $(SRCDIR)crc32.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)crc32.c
-
-deflate.o: $(SRCDIR)deflate.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c
-
-infback.o: $(SRCDIR)infback.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)infback.c
-
-inffast.o: $(SRCDIR)inffast.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inffast.c
-
-inflate.o: $(SRCDIR)inflate.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inflate.c
-
-inftrees.o: $(SRCDIR)inftrees.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inftrees.c
-
-trees.o: $(SRCDIR)trees.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)trees.c
-
-zutil.o: $(SRCDIR)zutil.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)zutil.c
-
-compress.o: $(SRCDIR)compress.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)compress.c
-
-uncompr.o: $(SRCDIR)uncompr.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)uncompr.c
-
-gzclose.o: $(SRCDIR)gzclose.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzclose.c
-
-gzlib.o: $(SRCDIR)gzlib.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzlib.c
-
-gzread.o: $(SRCDIR)gzread.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzread.c
-
-gzwrite.o: $(SRCDIR)gzwrite.c
-	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzwrite.c
-
-
-adler32.lo: $(SRCDIR)adler32.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/adler32.o $(SRCDIR)adler32.c
-	-@mv objs/adler32.o $@
-
-crc32.lo: $(SRCDIR)crc32.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c
-	-@mv objs/crc32.o $@
-
-deflate.lo: $(SRCDIR)deflate.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/deflate.o $(SRCDIR)deflate.c
-	-@mv objs/deflate.o $@
-
-infback.lo: $(SRCDIR)infback.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/infback.o $(SRCDIR)infback.c
-	-@mv objs/infback.o $@
-
-inffast.lo: $(SRCDIR)inffast.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inffast.o $(SRCDIR)inffast.c
-	-@mv objs/inffast.o $@
-
-inflate.lo: $(SRCDIR)inflate.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inflate.o $(SRCDIR)inflate.c
-	-@mv objs/inflate.o $@
-
-inftrees.lo: $(SRCDIR)inftrees.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inftrees.o $(SRCDIR)inftrees.c
-	-@mv objs/inftrees.o $@
-
-trees.lo: $(SRCDIR)trees.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/trees.o $(SRCDIR)trees.c
-	-@mv objs/trees.o $@
-
-zutil.lo: $(SRCDIR)zutil.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/zutil.o $(SRCDIR)zutil.c
-	-@mv objs/zutil.o $@
-
-compress.lo: $(SRCDIR)compress.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/compress.o $(SRCDIR)compress.c
-	-@mv objs/compress.o $@
-
-uncompr.lo: $(SRCDIR)uncompr.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/uncompr.o $(SRCDIR)uncompr.c
-	-@mv objs/uncompr.o $@
-
-gzclose.lo: $(SRCDIR)gzclose.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzclose.o $(SRCDIR)gzclose.c
-	-@mv objs/gzclose.o $@
-
-gzlib.lo: $(SRCDIR)gzlib.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzlib.o $(SRCDIR)gzlib.c
-	-@mv objs/gzlib.o $@
-
-gzread.lo: $(SRCDIR)gzread.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzread.o $(SRCDIR)gzread.c
-	-@mv objs/gzread.o $@
-
-gzwrite.lo: $(SRCDIR)gzwrite.c
-	-@mkdir objs 2>/dev/null || test -d objs
-	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzwrite.o $(SRCDIR)gzwrite.c
-	-@mv objs/gzwrite.o $@
-
-
-placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
-	$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
-	rm -f $(SHAREDLIB) $(SHAREDLIBM)
-	ln -s $@ $(SHAREDLIB)
-	ln -s $@ $(SHAREDLIBM)
-	-@rmdir objs
-
-example$(EXE): example.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
-
-minigzip$(EXE): minigzip.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
-
-examplesh$(EXE): example.o $(SHAREDLIBV)
-	$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
-
-minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
-	$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
-
-example64$(EXE): example64.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
-
-minigzip64$(EXE): minigzip64.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
-
-install-libs: $(LIBS)
-	-@if [ ! -d $(DESTDIR)$(exec_prefix)  ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
-	-@if [ ! -d $(DESTDIR)$(libdir)       ]; then mkdir -p $(DESTDIR)$(libdir); fi
-	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
-	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
-	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
-	rm -f $(DESTDIR)$(libdir)/$(STATICLIB)
-	cp $(STATICLIB) $(DESTDIR)$(libdir)
-	chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
-	-@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
-	-@if test -n "$(SHAREDLIBV)"; then \
-	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
-	  cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
-	  echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
-	  chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
-	  echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
-	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
-	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
-	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
-	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
-	fi
-	rm -f $(DESTDIR)$(man3dir)/zlib.3
-	cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir)
-	chmod 644 $(DESTDIR)$(man3dir)/zlib.3
-	rm -f $(DESTDIR)$(pkgconfigdir)/zlib.pc
-	cp zlib.pc $(DESTDIR)$(pkgconfigdir)
-	chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
-# The ranlib in install is needed on NeXTSTEP which checks file times
-# ldconfig is for Linux
-
-install: install-libs
-	-@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
-	rm -f $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
-	cp $(SRCDIR)zlib.h zconf.h $(DESTDIR)$(includedir)
-	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
-
-uninstall:
-	cd $(DESTDIR)$(includedir) && rm -f zlib.h zconf.h
-	cd $(DESTDIR)$(libdir) && rm -f libz.a; \
-	if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
-	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
-	fi
-	cd $(DESTDIR)$(man3dir) && rm -f zlib.3
-	cd $(DESTDIR)$(pkgconfigdir) && rm -f zlib.pc
-
-docs: zlib.3.pdf
-
-zlib.3.pdf: $(SRCDIR)zlib.3
-	groff -mandoc -f H -T ps $(SRCDIR)zlib.3 | ps2pdf - $@
-
-zconf.h.cmakein: $(SRCDIR)zconf.h.in
-	-@ TEMPFILE=zconfh_$$; \
-	echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\
-	sed -f $$TEMPFILE $(SRCDIR)zconf.h.in > $@ &&\
-	touch -r $(SRCDIR)zconf.h.in $@ &&\
-	rm $$TEMPFILE
-
-zconf: $(SRCDIR)zconf.h.in
-	cp -p $(SRCDIR)zconf.h.in zconf.h
-
-mostlyclean: clean
-clean:
-	rm -f *.o *.lo *~ \
-	   example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
-	   example64$(EXE) minigzip64$(EXE) \
-	   infcover \
-	   libz.* foo.gz so_locations \
-	   _match.s maketree contrib/infback9/*.o
-	rm -rf objs
-	rm -f *.gcda *.gcno *.gcov
-	rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
-
-maintainer-clean: distclean
-distclean: clean zconf zconf.h.cmakein docs
-	rm -f Makefile zlib.pc configure.log
-	-@rm -f .DS_Store
-	@if [ -f Makefile.in ]; then \
-	printf 'all:\n\t-@echo "Please use ./configure first.  Thank you."\n' > Makefile ; \
-	printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile ; \
-	touch -r $(SRCDIR)Makefile.in Makefile ; fi
-	@if [ ! -f zconf.h.in ]; then rm -f zconf.h zconf.h.cmakein ; fi
-	@if [ ! -f zlib.3 ]; then rm -f zlib.3.pdf ; fi
-
-tags:
-	etags $(SRCDIR)*.[ch]
-
-adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
-gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
-crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
-deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
-infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
-inffast.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
-inftrees.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
-trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
-
-adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
-gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
-compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
-crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
-deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
-infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
-inffast.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
-inftrees.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
-trees.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
--- a/234
+++ b/234
@@ -1,115 +1,185 @@
-ZLIB DATA COMPRESSION LIBRARY
+README:  Tcl
+    This is the Tcl 8.6.6 source distribution.
+	http://sourceforge.net/projects/tcl/files/Tcl/
+    You can get any source release of Tcl from the URL above.

-zlib 1.2.11 is a general purpose data compression library.  All the code is
-thread safe.  The data format used by the zlib library is described by RFCs
-(Request for Comments) 1950 to 1952 in the files
-http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
-rfc1952 (gzip format).
+Contents
+--------
+    1. Introduction
+    2. Documentation
+    3. Compiling and installing Tcl
+    4. Development tools
+    5. Tcl newsgroup
+    6. The Tcler's Wiki
+    7. Mailing lists
+    8. Support and Training
+    9. Tracking Development
+    10. Thank You

-All functions of the compression library are documented in the file zlib.h
-(volunteer to write man pages welcome, contact zlib@gzip.org).  A usage example
-of the library is given in the file test/example.c which also tests that
-the library is working correctly.  Another example is given in the file
-test/minigzip.c.  The compression library itself is composed of all source
-files in the root directory.
+1. Introduction
+---------------
+Tcl provides a powerful platform for creating integration applications that
+tie together diverse applications, protocols, devices, and frameworks.
+When paired with the Tk toolkit, Tcl provides the fastest and most powerful
+way to create GUI applications that run on PCs, Unix, and Mac OS X.
+Tcl can also be used for a variety of web-related tasks and for creating
+powerful command languages for applications.

-To compile all files and run the test program, follow the instructions given at
-the top of Makefile.in.  In short "./configure; make test", and if that goes
-well, "make install" should work for most flavors of Unix.  For Windows, use
-one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
-make_vms.com.
+Tcl is maintained, enhanced, and distributed freely by the Tcl community.
+Source code development and tracking of bug reports and feature requests
+takes place at:

-Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
-<info@winimage.com> for the Windows DLL version.  The zlib home page is
-http://zlib.net/ .  Before reporting a problem, please check this site to
-verify that you have the latest version of zlib; otherwise get the latest
-version and check whether the problem still exists or not.
+	http://core.tcl.tk/

-PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
+Tcl/Tk release and mailing list services are hosted by SourceForge:

-Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
-issue of Dr.  Dobb's Journal; a copy of the article is available at
-http://marknelson.us/1997/01/01/zlib-engine/ .
+	http://sourceforge.net/projects/tcl/

-The changes made in version 1.2.11 are documented in the file ChangeLog.
+with the Tcl Developer Xchange hosted at:

-Unsupported third party contributions are provided in directory contrib/ .
+	http://www.tcl.tk/

-zlib is available in Java using the java.util.zip package, documented at
-http://java.sun.com/developer/technicalArticles/Programming/compression/ .
+Tcl is a freely available open source package.  You can do virtually
+anything you like with it, such as modifying it, redistributing it,
+and selling it either in whole or in part.  See the file
+"license.terms" for complete information.

-A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
-at CPAN (Comprehensive Perl Archive Network) sites, including
-http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
+2. Documentation
+----------------

-A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
-available in Python 1.5 and later versions, see
-http://docs.python.org/library/zlib.html .
+Extensive documentation is available at our website.
+The home page for this release, including new features, is
+	http://www.tcl.tk/software/tcltk/8.6.html

-zlib is built into tcl: http://wiki.tcl.tk/4610 .
+Detailed release notes can be found at the file distributions page
+by clicking on the relevant version.
+	http://sourceforge.net/projects/tcl/files/Tcl/

-An experimental package to read and write files in .zip format, written on top
-of zlib by Gilles Vollant <info@winimage.com>, is available in the
-contrib/minizip directory of zlib.
+Information about Tcl itself can be found at
+	http://www.tcl.tk/about/

+There have been many Tcl books on the market.  Many are mentioned in the Wiki:
+	http://wiki.tcl.tk/_/ref?N=25206

-Notes for some targets:
+To view the complete set of reference manual entries for Tcl 8.6 online,
+visit the URL:
+	http://www.tcl.tk/man/tcl8.6/

- For Windows DLL versions, please see win32/DLL_FAQ.txt
+2a. Unix Documentation
+----------------------

- For 64-bit Irix, deflate.c must be compiled without any optimization. With
-  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
-  compiler flag). The compiler bug has been reported to SGI.
+The "doc" subdirectory in this release contains a complete set of
+reference manual entries for Tcl.  Files with extension ".1" are for
+programs (for example, tclsh.1); files with extension ".3" are for C
+library procedures; and files with extension ".n" describe Tcl
+commands.  The file "doc/Tcl.n" gives a quick summary of the Tcl
+language syntax.  To print any of the man pages on Unix, cd to the
+"doc" directory and invoke your favorite variant of troff using the
+normal -man macros, for example

- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
-  when compiled with cc.
+		ditroff -man Tcl.n

- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
-  necessary to get gzprintf working correctly. This is done by configure.
+to print Tcl.n.  If Tcl has been installed correctly and your "man" program
+supports it, you should be able to access the Tcl manual entries using the
+normal "man" mechanisms, such as

- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
-  other compilers. Use "make test" to check your compiler.
+		man Tcl

- gzdopen is not supported on RISCOS or BEOS.
+2b. Windows Documentation
+-------------------------

- For PalmOs, see http://palmzlib.sourceforge.net/
+The "doc" subdirectory in this release contains a complete set of Windows
+help files for Tcl.  Once you install this Tcl release, a shortcut to the
+Windows help Tcl documentation will appear in the "Start" menu:

+	Start | Programs | Tcl | Tcl Help

-Acknowledgments:
+3. Compiling and installing Tcl
+-------------------------------

-  The deflate format used by zlib was defined by Phil Katz.  The deflate and
-  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
-  people who reported problems and suggested various improvements in zlib; they
-  are too numerous to cite here.
+There are brief notes in the unix/README, win/README, and macosx/README about
+compiling on these different platforms.  There is additional information
+about building Tcl from sources at

-Copyright notice:
+	http://www.tcl.tk/doc/howto/compile.html

- (C) 1995-2017 Jean-loup Gailly and Mark Adler
+4. Development tools
+---------------------------

-  This software is provided 'as-is', without any express or implied
-  warranty.  In no event will the authors be held liable for any damages
-  arising from the use of this software.
+ActiveState produces a high quality set of commercial quality development
+tools that is available to accelerate your Tcl application development.
+Tcl Dev Kit builds on the earlier TclPro toolset and provides a debugger,
+static code checker, single-file wrapping utility, bytecode compiler and
+more.  More information can be found at

-  Permission is granted to anyone to use this software for any purpose,
-  including commercial applications, and to alter it and redistribute it
-  freely, subject to the following restrictions:
+	http://www.ActiveState.com/Tcl

-  1. The origin of this software must not be misrepresented; you must not
-     claim that you wrote the original software. If you use this software
-     in a product, an acknowledgment in the product documentation would be
-     appreciated but is not required.
-  2. Altered source versions must be plainly marked as such, and must not be
-     misrepresented as being the original software.
-  3. This notice may not be removed or altered from any source distribution.
+5. Tcl newsgroup
+----------------

-  Jean-loup Gailly        Mark Adler
-  jloup@gzip.org          madler@alumni.caltech.edu
+There is a USENET news group, "comp.lang.tcl", intended for the exchange of
+information about Tcl, Tk, and related applications.  The newsgroup is a
+great place to ask general information questions.  For bug reports, please
+see the "Support and bug fixes" section below.

-If you use the zlib library in a product, we would appreciate *not* receiving
-lengthy legal documents to sign.  The sources are provided for free but without
-warranty of any kind.  The library has been entirely written by Jean-loup
-Gailly and Mark Adler; it does not include third-party code.
+6. Tcl'ers Wiki
+---------------

-If you redistribute modified sources, we would appreciate that you include in
-the file ChangeLog history information documenting your changes.  Please read
-the FAQ for more information on the distribution of modified source versions.
+A Wiki-based open community site covering all aspects of Tcl/Tk is at:
+
+	http://wiki.tcl.tk/
+
+It is dedicated to the Tcl programming language and its extensions.  A
+wealth of useful information can be found there.  It contains code
+snippets, references to papers, books, and FAQs, as well as pointers to
+development tools, extensions, and applications.  You can also recommend
+additional URLs by editing the wiki yourself.
+
+7. Mailing lists
+----------------
+
+Several mailing lists are hosted at SourceForge to discuss development or
+use issues (like Macintosh and Windows topics).  For more information and
+to subscribe, visit:
+
+	http://sourceforge.net/projects/tcl/
+
+and go to the Mailing Lists page.
+
+8. Support and Training
+------------------------
+
+We are very interested in receiving bug reports, patches, and suggestions
+for improvements.  We prefer that you send this information to us as
+tickets entered into our tracker at:
+
+	http://core.tcl.tk/tcl/reportlist
+
+We will log and follow-up on each bug, although we cannot promise a
+specific turn-around time.  Enhancements may take longer and may not happen
+at all unless there is widespread support for them (we're trying to
+slow the rate at which Tcl/Tk turns into a kitchen sink).  It's very
+difficult to make incompatible changes to Tcl/Tk at this point, due to
+the size of the installed base.
+
+The Tcl community is too large for us to provide much individual support
+for users.  If you need help we suggest that you post questions to
+comp.lang.tcl.  We read the newsgroup and will attempt to answer esoteric
+questions for which no one else is likely to know the answer.  In addition,
+see the following Web site for links to other organizations that offer
+Tcl/Tk training:
+
+	http://wiki.tcl.tk/training
+
+9. Tracking Development
+-----------------------
+
+Tcl is developed in public.  To keep an eye on how Tcl is changing, see
+	http://core.tcl.tk/
+
+10. Thank You
+-------------
+
+We'd like to express our thanks to the Tcl community for all the
+helpful suggestions, bug reports, and patches we have received.
+Tcl/Tk has improved vastly and will continue to do so with your help.
--- a/README.md
+++ b/README.md
@@ -0,0 +1,2 @@
+# cpython-source-deps
+Source for packages that the cpython build process depends on
--- a/8700
+++ b/8700
--- a/compat/README
+++ b/compat/README
@@ -0,0 +1,6 @@
+This directory contains various header and code files that are
+used make Tcl compatible with various releases of UNIX and UNIX-like
+systems.  Typically, files from this directory are used to compile
+Tcl when a system doesn't contain the corresponding files or when
+they are known to be incorrect.  When the whole world becomes POSIX-
+compliant this directory should be unnecessary.
--- a/compat/dirent.h
+++ b/compat/dirent.h
@@ -0,0 +1,21 @@
+/*
+ * dirent.h --
+ *
+ *	This file is a replacement for <dirent.h> in systems that
+ *	support the old BSD-style <sys/dir.h> with a "struct direct".
+ *
+ * Copyright (c) 1991 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef _DIRENT
+#define _DIRENT
+
+#include <sys/dir.h>
+
+#define dirent direct
+
+#endif /* _DIRENT */
--- a/compat/dirent2.h
+++ b/compat/dirent2.h
@@ -0,0 +1,53 @@
+/*
+ * dirent.h --
+ *
+ *	Declarations of a library of directory-reading procedures
+ *	in the POSIX style ("struct dirent").
+ *
+ * Copyright (c) 1991 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef _DIRENT
+#define _DIRENT
+
+/*
+ * Dirent structure, which holds information about a single
+ * directory entry.
+ */
+
+#define MAXNAMLEN 255
+#define DIRBLKSIZ 512
+
+struct dirent {
+    long d_ino;			/* Inode number of entry */
+    short d_reclen;		/* Length of this record */
+    short d_namlen;		/* Length of string in d_name */
+    char d_name[MAXNAMLEN + 1];	/* Name must be no longer than this */
+};
+
+/*
+ * State that keeps track of the reading of a directory (clients
+ * should never look inside this structure;  the fields should
+ * only be accessed by the library procedures).
+ */
+
+typedef struct _dirdesc {
+    int dd_fd;
+    long dd_loc;
+    long dd_size;
+    char dd_buf[DIRBLKSIZ];
+} DIR;
+
+/*
+ * Procedures defined for reading directories:
+ */
+
+extern void		closedir (DIR *dirp);
+extern DIR *		opendir (char *name);
+extern struct dirent *	readdir (DIR *dirp);
+
+#endif /* _DIRENT */
--- a/compat/dlfcn.h
+++ b/compat/dlfcn.h
@@ -0,0 +1,58 @@
+/*
+ * dlfcn.h --
+ *
+ *	This file provides a replacement for the header file "dlfcn.h"
+ *	on systems where dlfcn.h is missing.  It's primary use is for
+ *	AIX, where Tcl emulates the dl library.
+ *
+ *	This file is subject to the following copyright notice, which is
+ *	different from the notice used elsewhere in Tcl but rougly
+ *	equivalent in meaning.
+ *
+ *	Copyright (c) 1992,1993,1995,1996, Jens-Uwe Mager, Helios Software GmbH
+ *	Not derived from licensed software.
+ *
+ *	Permission is granted to freely use, copy, modify, and redistribute
+ *	this software, provided that the author is not construed to be liable
+ *	for any results of using the software, alterations are clearly marked
+ *	as such, and this notice is not modified.
+ */
+
+/*
+ * This is an unpublished work copyright (c) 1992 HELIOS Software GmbH
+ * 30159 Hannover, Germany
+ */
+
+#ifndef __dlfcn_h__
+#define __dlfcn_h__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Mode flags for the dlopen routine.
+ */
+#define RTLD_LAZY	1	/* lazy function call binding */
+#define RTLD_NOW	2	/* immediate function call binding */
+#define RTLD_GLOBAL	0x100	/* allow symbols to be global */
+
+/*
+ * To be able to intialize, a library may provide a dl_info structure
+ * that contains functions to be called to initialize and terminate.
+ */
+struct dl_info {
+	void (*init) (void);
+	void (*fini) (void);
+};
+
+void *dlopen (const char *path, int mode);
+void *dlsym (void *handle, const char *symbol);
+char *dlerror (void);
+int dlclose (void *handle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __dlfcn_h__ */
--- a/compat/fake-rfc2553.c
+++ b/compat/fake-rfc2553.c
@@ -0,0 +1,266 @@
+/*
+ * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
+ * Copyright (C) 1999 WIDE Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Pseudo-implementation of RFC2553 name / address resolution functions
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For example, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ */
+#include "tclInt.h"
+
+TCL_DECLARE_MUTEX(netdbMutex)
+
+#ifndef HAVE_GETNAMEINFO
+#ifndef HAVE_STRLCPY
+static size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+        char *d = dst;
+        const char *s = src;
+        size_t n = siz;
+
+        /* Copy as many bytes as will fit */
+        if (n != 0 && --n != 0) {
+                do {
+                        if ((*d++ = *s++) == 0)
+                                break;
+                } while (--n != 0);
+        }
+
+        /* Not enough room in dst, add NUL and traverse rest of src */
+        if (n == 0) {
+                if (siz != 0)
+                        *d = '\0';              /* NUL-terminate dst */
+                while (*s++)
+                        ;
+        }
+
+        return(s - src - 1);    /* count does not include NUL */
+}
+#endif
+
+int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
+                size_t hostlen, char *serv, size_t servlen, int flags)
+{
+	struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+	struct hostent *hp;
+	char tmpserv[16];
+
+	if (sa->sa_family != AF_UNSPEC && sa->sa_family != AF_INET)
+		return (EAI_FAMILY);
+	if (serv != NULL) {
+		snprintf(tmpserv, sizeof(tmpserv), "%d", ntohs(sin->sin_port));
+		if (strlcpy(serv, tmpserv, servlen) >= servlen)
+			return (EAI_MEMORY);
+	}
+
+	if (host != NULL) {
+		if (flags & NI_NUMERICHOST) {
+			size_t len;
+			Tcl_MutexLock(&netdbMutex);
+			len = strlcpy(host, inet_ntoa(sin->sin_addr), hostlen);
+			Tcl_MutexUnlock(&netdbMutex);
+			if (len >= hostlen) {
+				return (EAI_MEMORY);
+			} else {
+				return (0);
+			}
+		} else {
+			int ret;
+			Tcl_MutexLock(&netdbMutex);
+			hp = gethostbyaddr((char *)&sin->sin_addr,
+			    sizeof(struct in_addr), AF_INET);
+			if (hp == NULL) {
+				ret = EAI_NODATA;
+			} else if (strlcpy(host, hp->h_name, hostlen)
+				   >= hostlen) {
+				ret = EAI_MEMORY;
+			} else {
+				ret = 0;
+			}
+			Tcl_MutexUnlock(&netdbMutex);
+			return ret;
+		}
+	}
+	return (0);
+}
+#endif /* !HAVE_GETNAMEINFO */
+
+#ifndef HAVE_GAI_STRERROR
+const char *
+fake_gai_strerror(int err)
+{
+	switch (err) {
+	case EAI_NODATA:
+		return ("no address associated with name");
+	case EAI_MEMORY:
+		return ("memory allocation failure.");
+	case EAI_NONAME:
+		return ("nodename nor servname provided, or not known");
+	case EAI_FAMILY:
+		return ("ai_family not supported");
+	default:
+		return ("unknown/invalid error.");
+	}
+}
+#endif /* !HAVE_GAI_STRERROR */
+
+#ifndef HAVE_FREEADDRINFO
+void
+fake_freeaddrinfo(struct addrinfo *ai)
+{
+	struct addrinfo *next;
+
+	for(; ai != NULL;) {
+		next = ai->ai_next;
+		free(ai);
+		ai = next;
+	}
+}
+#endif /* !HAVE_FREEADDRINFO */
+
+#ifndef HAVE_GETADDRINFO
+static struct
+addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)
+{
+	struct addrinfo *ai;
+
+	ai = malloc(sizeof(*ai) + sizeof(struct sockaddr_in));
+	if (ai == NULL)
+		return (NULL);
+
+	memset(ai, '\0', sizeof(*ai) + sizeof(struct sockaddr_in));
+
+	ai->ai_addr = (struct sockaddr *)(ai + 1);
+	/* XXX -- ssh doesn't use sa_len */
+	ai->ai_addrlen = sizeof(struct sockaddr_in);
+	ai->ai_addr->sa_family = ai->ai_family = AF_INET;
+
+	((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
+	((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
+
+	/* XXX: the following is not generally correct, but does what we want */
+	if (hints->ai_socktype)
+		ai->ai_socktype = hints->ai_socktype;
+	else
+		ai->ai_socktype = SOCK_STREAM;
+
+	if (hints->ai_protocol)
+		ai->ai_protocol = hints->ai_protocol;
+
+	return (ai);
+}
+
+int
+fake_getaddrinfo(const char *hostname, const char *servname,
+    const struct addrinfo *hints, struct addrinfo **res)
+{
+	struct hostent *hp;
+	struct servent *sp;
+	struct in_addr in;
+	int i;
+	long int port;
+	u_long addr;
+
+	port = 0;
+	if (hints && hints->ai_family != AF_UNSPEC &&
+	    hints->ai_family != AF_INET)
+		return (EAI_FAMILY);
+	if (servname != NULL) {
+		char *cp;
+
+		port = strtol(servname, &cp, 10);
+		if (port > 0 && port <= 65535 && *cp == '\0')
+			port = htons((unsigned short)port);
+		else if ((sp = getservbyname(servname, NULL)) != NULL)
+			port = sp->s_port;
+		else
+			port = 0;
+	}
+
+	if (hints && hints->ai_flags & AI_PASSIVE) {
+		addr = htonl(0x00000000);
+		if (hostname && inet_aton(hostname, &in) != 0)
+			addr = in.s_addr;
+		*res = malloc_ai(port, addr, hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	if (!hostname) {
+		*res = malloc_ai(port, htonl(0x7f000001), hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	if (inet_aton(hostname, &in)) {
+		*res = malloc_ai(port, in.s_addr, hints);
+		if (*res == NULL)
+			return (EAI_MEMORY);
+		return (0);
+	}
+
+	/* Don't try DNS if AI_NUMERICHOST is set */
+	if (hints && hints->ai_flags & AI_NUMERICHOST)
+		return (EAI_NONAME);
+
+	Tcl_MutexLock(&netdbMutex);
+	hp = gethostbyname(hostname);
+	if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
+		struct addrinfo *cur, *prev;
+
+		cur = prev = *res = NULL;
+		for (i = 0; hp->h_addr_list[i]; i++) {
+			struct in_addr *in = (struct in_addr *)hp->h_addr_list[i];
+
+			cur = malloc_ai(port, in->s_addr, hints);
+			if (cur == NULL) {
+				if (*res != NULL)
+					freeaddrinfo(*res);
+				Tcl_MutexUnlock(&netdbMutex);
+				return (EAI_MEMORY);
+			}
+			if (prev)
+				prev->ai_next = cur;
+			else
+				*res = cur;
+
+			prev = cur;
+		}
+		Tcl_MutexUnlock(&netdbMutex);
+		return (0);
+	}
+	Tcl_MutexUnlock(&netdbMutex);
+	return (EAI_NODATA);
+}
+#endif /* !HAVE_GETADDRINFO */
--- a/compat/fake-rfc2553.h
+++ b/compat/fake-rfc2553.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
+ * Copyright (C) 1999 WIDE Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Pseudo-implementation of RFC2553 name / address resolution functions
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For example, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ */
+
+#ifndef _FAKE_RFC2553_H
+#define _FAKE_RFC2553_H
+
+/*
+ * First, socket and INET6 related definitions
+ */
+#ifndef HAVE_STRUCT_SOCKADDR_STORAGE
+# define	_SS_MAXSIZE	128	/* Implementation specific max size */
+# define       _SS_PADSIZE     (_SS_MAXSIZE - sizeof (struct sockaddr))
+struct sockaddr_storage {
+	struct sockaddr	ss_sa;
+	char		__ss_pad2[_SS_PADSIZE];
+};
+# define ss_family ss_sa.sa_family
+#endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */
+
+#ifndef IN6_IS_ADDR_LOOPBACK
+# define IN6_IS_ADDR_LOOPBACK(a) \
+	(((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
+	 ((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == htonl(1))
+#endif /* !IN6_IS_ADDR_LOOPBACK */
+
+#ifndef HAVE_STRUCT_IN6_ADDR
+struct in6_addr {
+	uint8_t	s6_addr[16];
+};
+#endif /* !HAVE_STRUCT_IN6_ADDR */
+
+#ifndef HAVE_STRUCT_SOCKADDR_IN6
+struct sockaddr_in6 {
+	unsigned short	sin6_family;
+	uint16_t	sin6_port;
+	uint32_t	sin6_flowinfo;
+	struct in6_addr	sin6_addr;
+	uint32_t	sin6_scope_id;
+};
+#endif /* !HAVE_STRUCT_SOCKADDR_IN6 */
+
+#ifndef AF_INET6
+/* Define it to something that should never appear */
+#define AF_INET6 AF_MAX
+#endif
+
+/*
+ * Next, RFC2553 name / address resolution API
+ */
+
+#ifndef NI_NUMERICHOST
+# define NI_NUMERICHOST    (1)
+#endif
+#ifndef NI_NAMEREQD
+# define NI_NAMEREQD       (1<<1)
+#endif
+#ifndef NI_NUMERICSERV
+# define NI_NUMERICSERV    (1<<2)
+#endif
+
+#ifndef AI_PASSIVE
+# define AI_PASSIVE		(1)
+#endif
+#ifndef AI_CANONNAME
+# define AI_CANONNAME		(1<<1)
+#endif
+#ifndef AI_NUMERICHOST
+# define AI_NUMERICHOST		(1<<2)
+#endif
+
+#ifndef NI_MAXSERV
+# define NI_MAXSERV 32
+#endif /* !NI_MAXSERV */
+#ifndef NI_MAXHOST
+# define NI_MAXHOST 1025
+#endif /* !NI_MAXHOST */
+
+#ifndef EAI_NODATA
+# define EAI_NODATA	(INT_MAX - 1)
+#endif
+#ifndef EAI_MEMORY
+# define EAI_MEMORY	(INT_MAX - 2)
+#endif
+#ifndef EAI_NONAME
+# define EAI_NONAME	(INT_MAX - 3)
+#endif
+#ifndef EAI_SYSTEM
+# define EAI_SYSTEM	(INT_MAX - 4)
+#endif
+#ifndef EAI_FAMILY
+# define EAI_FAMILY	(INT_MAX - 5)
+#endif
+#ifndef EAI_SERVICE
+# define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
+#endif
+
+#ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo {
+	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */
+	int	ai_family;	/* PF_xxx */
+	int	ai_socktype;	/* SOCK_xxx */
+	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+	size_t	ai_addrlen;	/* length of ai_addr */
+	char	*ai_canonname;	/* canonical name for hostname */
+	struct sockaddr *ai_addr;	/* binary address */
+	struct addrinfo *ai_next;	/* next structure in linked list */
+};
+#endif /* !HAVE_STRUCT_ADDRINFO */
+
+#ifndef HAVE_GETADDRINFO
+#ifdef getaddrinfo
+# undef getaddrinfo
+#endif
+#define getaddrinfo(a,b,c,d)    (fake_getaddrinfo(a,b,c,d))
+int getaddrinfo(const char *, const char *,
+    const struct addrinfo *, struct addrinfo **);
+#endif /* !HAVE_GETADDRINFO */
+
+#ifndef HAVE_GAI_STRERROR
+#define gai_strerror(a)         (fake_gai_strerror(a))
+const char *gai_strerror(int);
+#endif /* !HAVE_GAI_STRERROR */
+
+#ifndef HAVE_FREEADDRINFO
+#define freeaddrinfo(a)         (fake_freeaddrinfo(a))
+void freeaddrinfo(struct addrinfo *);
+#endif /* !HAVE_FREEADDRINFO */
+
+#ifndef HAVE_GETNAMEINFO
+#define getnameinfo(a,b,c,d,e,f,g) (fake_getnameinfo(a,b,c,d,e,f,g))
+int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
+    char *, size_t, int);
+#endif /* !HAVE_GETNAMEINFO */
+
+
+#endif /* !_FAKE_RFC2553_H */
--- a/compat/fixstrtod.c
+++ b/compat/fixstrtod.c
@@ -0,0 +1,36 @@
+/*
+ * fixstrtod.c --
+ *
+ *	Source code for the "fixstrtod" procedure.  This procedure is
+ *	used in place of strtod under Solaris 2.4, in order to fix
+ *	a bug where the "end" pointer gets set incorrectly.
+ *
+ * Copyright (c) 1995 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include <stdio.h>
+
+#undef strtod
+
+/*
+ * Declare strtod explicitly rather than including stdlib.h, since in
+ * somes systems (e.g. SunOS 4.1.4) stdlib.h doesn't declare strtod.
+ */
+
+extern double strtod(char *, char **);
+
+double
+fixstrtod(
+    char *string,
+    char **endPtr)
+{
+    double d;
+    d = strtod(string, endPtr);
+    if ((endPtr != NULL) && (*endPtr != string) && ((*endPtr)[-1] == 0)) {
+	*endPtr -= 1;
+    }
+    return d;
+}
--- a/compat/float.h
+++ b/compat/float.h
@@ -0,0 +1,14 @@
+/*
+ * float.h --
+ *
+ *	This is a dummy header file to #include in Tcl when there
+ *	is no float.h in /usr/include.  Right now this file is empty:
+ *	Tcl contains #ifdefs to deal with the lack of definitions;
+ *	all it needs is for the #include statement to work.
+ *
+ * Copyright (c) 1993 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
--- a/compat/gettod.c
+++ b/compat/gettod.c
@@ -0,0 +1,30 @@
+/*
+ * gettod.c --
+ *
+ *	This file provides the gettimeofday function on systems
+ *	that only have the System V ftime function.
+ *
+ * Copyright (c) 1995 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclPort.h"
+#include <sys/timeb.h>
+
+#undef timezone
+
+int
+gettimeofday(
+    struct timeval *tp,
+    struct timezone *tz)
+{
+    struct timeb t;
+
+    ftime(&t);
+    tp->tv_sec = t.time;
+    tp->tv_usec = t. millitm * 1000;
+    return 0;
+}
+
--- a/compat/license.terms
+++ b/compat/license.terms
@@ -0,0 +1,40 @@
+This software is copyrighted by the Regents of the University of
+California, Sun Microsystems, Inc., Scriptics Corporation, ActiveState
+Corporation and other parties.  The following terms apply to all files
+associated with the software unless explicitly disclaimed in
+individual files.
+
+The authors hereby grant permission to use, copy, modify, distribute,
+and license this software and its documentation for any purpose, provided
+that existing copyright notices are retained in all copies and that this
+notice is included verbatim in any distributions. No written agreement,
+license, or royalty fee is required for any of the authorized uses.
+Modifications to this software may be copyrighted by their authors
+and need not follow the licensing terms described here, provided that
+the new terms are clearly indicated on the first page of each file where
+they apply.
+
+IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
+FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
+DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
+IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
+NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
+MODIFICATIONS.
+
+GOVERNMENT USE: If you are acquiring this software on behalf of the
+U.S. government, the Government shall have only "Restricted Rights"
+in the software and related documentation as defined in the Federal
+Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
+are acquiring the software on behalf of the Department of Defense, the
+software shall be classified as "Commercial Computer Software" and the
+Government shall have only "Restricted Rights" as defined in Clause
+252.227-7014 (b) (3) of DFARs.  Notwithstanding the foregoing, the
+authors grant the U.S. Government and others acting in its behalf
+permission to use and distribute the software in accordance with the
+terms specified in this license.
--- a/compat/memcmp.c
+++ b/compat/memcmp.c
@@ -0,0 +1,64 @@
+/*
+ * memcmp.c --
+ *
+ *	Source code for the "memcmp" library routine.
+ *
+ * Copyright (c) 1998 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclPort.h"
+
+/*
+ * Here is the prototype just in case it is not included in tclPort.h.
+ */
+
+int		memcmp(const void *s1, const void *s2, size_t n);
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * memcmp --
+ *
+ *	Compares two bytes sequences.
+ *
+ * Results:
+ *	Compares its arguments, looking at the first n bytes (each interpreted
+ *	as an unsigned char), and returns an integer less than, equal to, or
+ *	greater than 0, according as s1 is less than, equal to, or greater
+ *	than s2 when taken to be unsigned 8 bit numbers.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+memcmp(
+    const void *s1,		/* First string. */
+    const void *s2,		/* Second string. */
+    size_t n)			/* Length to compare. */
+{
+    const unsigned char *ptr1 = (const unsigned char *) s1;
+    const unsigned char *ptr2 = (const unsigned char *) s2;
+
+    for ( ; n-- ; ptr1++, ptr2++) {
+	unsigned char u1 = *ptr1, u2 = *ptr2;
+
+	if (u1 != u2) {
+	    return (u1-u2);
+	}
+    }
+    return 0;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
--- a/compat/mkstemp.c
+++ b/compat/mkstemp.c
@@ -0,0 +1,78 @@
+/*
+ * mkstemp.c --
+ *
+ *	Source code for the "mkstemp" library routine.
+ *
+ * Copyright (c) 2009 Donal K. Fellows
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * mkstemp --
+ *
+ *	Create an open temporary file from a template.
+ *
+ * Results:
+ *	A file descriptor, or -1 (with errno set) in the case of an error.
+ *
+ * Side effects:
+ *	The template is updated to contain the real filename.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+mkstemp(
+    char *template)		/* Template for filename. */
+{
+    static const char alphanumerics[] =
+	"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    register char *a, *b;
+    int fd, count, alphanumericsLen = strlen(alphanumerics); /* == 62 */
+
+    a = template + strlen(template);
+    while (a > template && *(a-1) == 'X') {
+	a--;
+    }
+
+    if (a == template) {
+	errno = ENOENT;
+	return -1;
+    }
+
+    /*
+     * We'll only try up to 10 times; after that, we're suffering from enemy
+     * action and should let the caller know.
+     */
+
+    count = 10;
+    do {
+	/*
+	 * Replace the X's in the original template with random alphanumeric
+	 * digits.
+	 */
+
+	for (b=a ; *b ; b++) {
+	    float r = rand() / ((float) RAND_MAX);
+
+	    *b = alphanumerics[(int)(r * alphanumericsLen)];
+	}
+
+	/*
+	 * Template is now realized; try to open (with correct options).
+	 */
+
+	fd = open(template, O_RDWR|O_CREAT|O_EXCL, 0600);
+    } while (fd == -1 && errno == EEXIST && --count > 0);
+
+    return fd;
+}
--- a/compat/opendir.c
+++ b/compat/opendir.c
@@ -0,0 +1,110 @@
+/*
+ * opendir.c --
+ *
+ *	This file provides dirent-style directory-reading procedures for V7
+ *	Unix systems that don't have such procedures. The origin of this code
+ *	is unclear, but it seems to have come originally from Larry Wall.
+ */
+
+#include "tclInt.h"
+
+#undef DIRSIZ
+#define DIRSIZ(dp) \
+    ((sizeof(struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
+
+/*
+ * open a directory.
+ */
+
+DIR *
+opendir(
+    char *name)
+{
+    register DIR *dirp;
+    register int fd;
+    char *myname;
+
+    myname = ((*name == '\0') ? "." : name);
+    if ((fd = open(myname, 0, 0)) == -1) {
+	return NULL;
+    }
+    dirp = (DIR *) ckalloc(sizeof(DIR));
+    if (dirp == NULL) {
+	/* unreachable? */
+	close(fd);
+	return NULL;
+    }
+    dirp->dd_fd = fd;
+    dirp->dd_loc = 0;
+    return dirp;
+}
+
+/*
+ * read an old style directory entry and present it as a new one
+ */
+#ifndef pyr
+#define	ODIRSIZ	14
+
+struct olddirect {
+    ino_t od_ino;
+    char od_name[ODIRSIZ];
+};
+#else	/* a Pyramid in the ATT universe */
+#define	ODIRSIZ	248
+
+struct olddirect {
+    long od_ino;
+    short od_fill1, od_fill2;
+    char od_name[ODIRSIZ];
+};
+#endif
+
+/*
+ * get next entry in a directory.
+ */
+
+struct dirent *
+readdir(
+    register DIR *dirp)
+{
+    register struct olddirect *dp;
+    static struct dirent dir;
+
+    for (;;) {
+	if (dirp->dd_loc == 0) {
+	    dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
+	    if (dirp->dd_size <= 0) {
+		return NULL;
+	    }
+	}
+	if (dirp->dd_loc >= dirp->dd_size) {
+	    dirp->dd_loc = 0;
+	    continue;
+	}
+	dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc);
+	dirp->dd_loc += sizeof(struct olddirect);
+	if (dp->od_ino == 0) {
+	    continue;
+	}
+	dir.d_ino = dp->od_ino;
+	strncpy(dir.d_name, dp->od_name, ODIRSIZ);
+	dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */
+	dir.d_namlen = strlen(dir.d_name);
+	dir.d_reclen = DIRSIZ(&dir);
+	return &dir;
+    }
+}
+
+/*
+ * close a directory.
+ */
+
+void
+closedir(
+    register DIR *dirp)
+{
+    close(dirp->dd_fd);
+    dirp->dd_fd = -1;
+    dirp->dd_loc = 0;
+    ckfree((char *) dirp);
+}
--- a/compat/stdlib.h
+++ b/compat/stdlib.h
@@ -0,0 +1,36 @@
+/*
+ * stdlib.h --
+ *
+ *	Declares facilities exported by the "stdlib" portion of the C library.
+ *	This file isn't complete in the ANSI-C sense; it only declares things
+ *	that are needed by Tcl. This file is needed even on many systems with
+ *	their own stdlib.h (e.g. SunOS) because not all stdlib.h files declare
+ *	all the procedures needed here (such as strtod).
+ *
+ * Copyright (c) 1991 The Regents of the University of California.
+ * Copyright (c) 1994-1998 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef _STDLIB
+#define _STDLIB
+
+extern void		abort(void);
+extern double		atof(const char *string);
+extern int		atoi(const char *string);
+extern long		atol(const char *string);
+extern char *		calloc(unsigned int numElements, unsigned int size);
+extern void		exit(int status);
+extern int		free(char *blockPtr);
+extern char *		getenv(const char *name);
+extern char *		malloc(unsigned int numBytes);
+extern void		qsort(void *base, int n, int size, int (*compar)(
+			    const void *element1, const void *element2));
+extern char *		realloc(char *ptr, unsigned int numBytes);
+extern double		strtod(const char *string, char **endPtr);
+extern long		strtol(const char *string, char **endPtr, int base);
+extern unsigned long	strtoul(const char *string, char **endPtr, int base);
+
+#endif /* _STDLIB */
--- a/compat/string.h
+++ b/compat/string.h
@@ -0,0 +1,57 @@
+/*
+ * string.h --
+ *
+ *	Declarations of ANSI C library procedures for string handling.
+ *
+ * Copyright (c) 1991-1993 The Regents of the University of California.
+ * Copyright (c) 1994-1996 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef _STRING
+#define _STRING
+
+/*
+ * The following #include is needed to define size_t. (This used to include
+ * sys/stdtypes.h but that doesn't exist on older versions of SunOS, e.g.
+ * 4.0.2, so I'm trying sys/types.h now.... hopefully it exists everywhere)
+ */
+
+#include <sys/types.h>
+
+#ifdef __APPLE__
+extern void *		memchr(const void *s, int c, size_t n);
+#else
+extern char *		memchr(const void *s, int c, size_t n);
+#endif
+extern int		memcmp(const void *s1, const void *s2, size_t n);
+extern char *		memcpy(void *t, const void *f, size_t n);
+#ifdef NO_MEMMOVE
+#define memmove(d,s,n)	(bcopy((s), (d), (n)))
+#else
+extern char *		memmove(void *t, const void *f, size_t n);
+#endif
+extern char *		memset(void *s, int c, size_t n);
+
+extern int		strcasecmp(const char *s1, const char *s2);
+extern char *		strcat(char *dst, const char *src);
+extern char *		strchr(const char *string, int c);
+extern int		strcmp(const char *s1, const char *s2);
+extern char *		strcpy(char *dst, const char *src);
+extern size_t		strcspn(const char *string, const char *chars);
+extern char *		strdup(const char *string);
+extern char *		strerror(int error);
+extern size_t		strlen(const char *string);
+extern int		strncasecmp(const char *s1, const char *s2, size_t n);
+extern char *		strncat(char *dst, const char *src, size_t numChars);
+extern int		strncmp(const char *s1, const char *s2, size_t nChars);
+extern char *		strncpy(char *dst, const char *src, size_t numChars);
+extern char *		strpbrk(const char *string, const char *chars);
+extern char *		strrchr(const char *string, int c);
+extern size_t		strspn(const char *string, const char *chars);
+extern char *		strstr(const char *string, const char *substring);
+extern char *		strtok(char *s, const char *delim);
+
+#endif /* _STRING */
--- a/compat/strncasecmp.c
+++ b/compat/strncasecmp.c
@@ -0,0 +1,136 @@
+/*
+ * strncasecmp.c --
+ *
+ *	Source code for the "strncasecmp" library routine.
+ *
+ * Copyright (c) 1988-1993 The Regents of the University of California.
+ * Copyright (c) 1995-1996 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclPort.h"
+
+/*
+ * This array is designed for mapping upper and lower case letter together for
+ * a case independent comparison. The mappings are based upon ASCII character
+ * sequences.
+ */
+
+static const unsigned char charmap[] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+    0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+    0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+    0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+    0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+    0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+    0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
+    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
+    0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
+    0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+    0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
+    0xc0, 0xe1, 0xe2, 0xe3, 0xe4, 0xc5, 0xe6, 0xe7,
+    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
+    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+    0xf8, 0xf9, 0xfa, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
+    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
+    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
+    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+    0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
+};
+
+/*
+ * Here are the prototypes just in case they are not included in tclPort.h.
+ */
+
+int		strncasecmp(const char *s1, const char *s2, size_t n);
+int		strcasecmp(const char *s1, const char *s2);
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strcasecmp --
+ *
+ *	Compares two strings, ignoring case differences.
+ *
+ * Results:
+ *	Compares two null-terminated strings s1 and s2, returning -1, 0, or 1
+ *	if s1 is lexicographically less than, equal to, or greater than s2.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+strcasecmp(
+    const char *s1,		/* First string. */
+    const char *s2)		/* Second string. */
+{
+    unsigned char u1, u2;
+
+    for ( ; ; s1++, s2++) {
+	u1 = (unsigned char) *s1;
+	u2 = (unsigned char) *s2;
+	if ((u1 == '\0') || (charmap[u1] != charmap[u2])) {
+	    break;
+	}
+    }
+    return charmap[u1] - charmap[u2];
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strncasecmp --
+ *
+ *	Compares two strings, ignoring case differences.
+ *
+ * Results:
+ *	Compares up to length chars of s1 and s2, returning -1, 0, or 1 if s1
+ *	is lexicographically less than, equal to, or greater than s2 over
+ *	those characters.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+strncasecmp(
+    const char *s1,		/* First string. */
+    const char *s2,		/* Second string. */
+    size_t length)		/* Maximum number of characters to compare
+				 * (stop earlier if the end of either string
+				 * is reached). */
+{
+    unsigned char u1, u2;
+
+    for (; length != 0; length--, s1++, s2++) {
+	u1 = (unsigned char) *s1;
+	u2 = (unsigned char) *s2;
+	if (charmap[u1] != charmap[u2]) {
+	    return charmap[u1] - charmap[u2];
+	}
+	if (u1 == '\0') {
+	    return 0;
+	}
+    }
+    return 0;
+}
--- a/compat/strstr.c
+++ b/compat/strstr.c
@@ -0,0 +1,70 @@
+/*
+ * strstr.c --
+ *
+ *	Source code for the "strstr" library routine.
+ *
+ * Copyright (c) 1988-1993 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tcl.h"
+#ifndef NULL
+#define NULL 0
+#endif
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strstr --
+ *
+ *	Locate the first instance of a substring in a string.
+ *
+ * Results:
+ *	If string contains substring, the return value is the location of the
+ *	first matching instance of substring in string. If string doesn't
+ *	contain substring, the return value is 0. Matching is done on an exact
+ *	character-for-character basis with no wildcards or special characters.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+char *
+strstr(
+    register char *string,	/* String to search. */
+    char *substring)		/* Substring to try to find in string. */
+{
+    register char *a, *b;
+
+    /*
+     * First scan quickly through the two strings looking for a
+     * single-character match. When it's found, then compare the rest of the
+     * substring.
+     */
+
+    b = substring;
+    if (*b == 0) {
+	return string;
+    }
+    for ( ; *string != 0; string += 1) {
+	if (*string != *b) {
+	    continue;
+	}
+	a = string;
+	while (1) {
+	    if (*b == 0) {
+		return string;
+	    }
+	    if (*a++ != *b++) {
+		break;
+	    }
+	}
+	b = substring;
+    }
+    return NULL;
+}
--- a/compat/strtod.c
+++ b/compat/strtod.c
@@ -0,0 +1,252 @@
+/*
+ * strtod.c --
+ *
+ *	Source code for the "strtod" library procedure.
+ *
+ * Copyright (c) 1988-1993 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+
+#ifndef TRUE
+#define TRUE 1
+#define FALSE 0
+#endif
+#ifndef NULL
+#define NULL 0
+#endif
+
+static const int maxExponent = 511;	/* Largest possible base 10 exponent.  Any
+				 * exponent larger than this will already
+				 * produce underflow or overflow, so there's
+				 * no need to worry about additional digits.
+				 */
+static const double powersOf10[] = {	/* Table giving binary powers of 10.  Entry */
+    10.,			/* is 10^2^i.  Used to convert decimal */
+    100.,			/* exponents into floating-point numbers. */
+    1.0e4,
+    1.0e8,
+    1.0e16,
+    1.0e32,
+    1.0e64,
+    1.0e128,
+    1.0e256
+};
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strtod --
+ *
+ *	This procedure converts a floating-point number from an ASCII
+ *	decimal representation to internal double-precision format.
+ *
+ * Results:
+ *	The return value is the double-precision floating-point
+ *	representation of the characters in string.  If endPtr isn't
+ *	NULL, then *endPtr is filled in with the address of the
+ *	next character after the last one that was part of the
+ *	floating-point number.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+double
+strtod(
+    const char *string,		/* A decimal ASCII floating-point number,
+				 * optionally preceded by white space. Must
+				 * have form "-I.FE-X", where I is the integer
+				 * part of the mantissa, F is the fractional
+				 * part of the mantissa, and X is the
+				 * exponent. Either of the signs may be "+",
+				 * "-", or omitted. Either I or F may be
+				 * omitted, or both. The decimal point isn't
+				 * necessary unless F is present. The "E" may
+				 * actually be an "e". E and X may both be
+				 * omitted (but not just one). */
+    char **endPtr)		/* If non-NULL, store terminating character's
+				 * address here. */
+{
+    int sign, expSign = FALSE;
+    double fraction, dblExp;
+    const double *d;
+    register const char *p;
+    register int c;
+    int exp = 0;		/* Exponent read from "EX" field. */
+    int fracExp = 0;		/* Exponent that derives from the fractional
+				 * part. Under normal circumstatnces, it is
+				 * the negative of the number of digits in F.
+				 * However, if I is very long, the last digits
+				 * of I get dropped (otherwise a long I with a
+				 * large negative exponent could cause an
+				 * unnecessary overflow on I alone). In this
+				 * case, fracExp is incremented one for each
+				 * dropped digit. */
+    int mantSize;		/* Number of digits in mantissa. */
+    int decPt;			/* Number of mantissa digits BEFORE decimal
+				 * point. */
+    const char *pExp;		/* Temporarily holds location of exponent in
+				 * string. */
+
+    /*
+     * Strip off leading blanks and check for a sign.
+     */
+
+    p = string;
+    while (isspace(UCHAR(*p))) {
+	p += 1;
+    }
+    if (*p == '-') {
+	sign = TRUE;
+	p += 1;
+    } else {
+	if (*p == '+') {
+	    p += 1;
+	}
+	sign = FALSE;
+    }
+
+    /*
+     * Count the number of digits in the mantissa (including the decimal
+     * point), and also locate the decimal point.
+     */
+
+    decPt = -1;
+    for (mantSize = 0; ; mantSize += 1)
+    {
+	c = *p;
+	if (!isdigit(c)) {
+	    if ((c != '.') || (decPt >= 0)) {
+		break;
+	    }
+	    decPt = mantSize;
+	}
+	p += 1;
+    }
+
+    /*
+     * Now suck up the digits in the mantissa. Use two integers to collect 9
+     * digits each (this is faster than using floating-point). If the mantissa
+     * has more than 18 digits, ignore the extras, since they can't affect the
+     * value anyway.
+     */
+
+    pExp  = p;
+    p -= mantSize;
+    if (decPt < 0) {
+	decPt = mantSize;
+    } else {
+	mantSize -= 1;		/* One of the digits was the point. */
+    }
+    if (mantSize > 18) {
+	fracExp = decPt - 18;
+	mantSize = 18;
+    } else {
+	fracExp = decPt - mantSize;
+    }
+    if (mantSize == 0) {
+	fraction = 0.0;
+	p = string;
+	goto done;
+    } else {
+	int frac1, frac2;
+
+	frac1 = 0;
+	for ( ; mantSize > 9; mantSize -= 1) {
+	    c = *p;
+	    p += 1;
+	    if (c == '.') {
+		c = *p;
+		p += 1;
+	    }
+	    frac1 = 10*frac1 + (c - '0');
+	}
+	frac2 = 0;
+	for (; mantSize > 0; mantSize -= 1) {
+	    c = *p;
+	    p += 1;
+	    if (c == '.') {
+		c = *p;
+		p += 1;
+	    }
+	    frac2 = 10*frac2 + (c - '0');
+	}
+	fraction = (1.0e9 * frac1) + frac2;
+    }
+
+    /*
+     * Skim off the exponent.
+     */
+
+    p = pExp;
+    if ((*p == 'E') || (*p == 'e')) {
+	p += 1;
+	if (*p == '-') {
+	    expSign = TRUE;
+	    p += 1;
+	} else {
+	    if (*p == '+') {
+		p += 1;
+	    }
+	    expSign = FALSE;
+	}
+	if (!isdigit(UCHAR(*p))) {
+	    p = pExp;
+	    goto done;
+	}
+	while (isdigit(UCHAR(*p))) {
+	    exp = exp * 10 + (*p - '0');
+	    p += 1;
+	}
+    }
+    if (expSign) {
+	exp = fracExp - exp;
+    } else {
+	exp = fracExp + exp;
+    }
+
+    /*
+     * Generate a floating-point number that represents the exponent. Do this
+     * by processing the exponent one bit at a time to combine many powers of
+     * 2 of 10. Then combine the exponent with the fraction.
+     */
+
+    if (exp < 0) {
+	expSign = TRUE;
+	exp = -exp;
+    } else {
+	expSign = FALSE;
+    }
+    if (exp > maxExponent) {
+	exp = maxExponent;
+	errno = ERANGE;
+    }
+    dblExp = 1.0;
+    for (d = powersOf10; exp != 0; exp >>= 1, ++d) {
+	if (exp & 01) {
+	    dblExp *= *d;
+	}
+    }
+    if (expSign) {
+	fraction /= dblExp;
+    } else {
+	fraction *= dblExp;
+    }
+
+  done:
+    if (endPtr != NULL) {
+	*endPtr = (char *) p;
+    }
+
+    if (sign) {
+	return -fraction;
+    }
+    return fraction;
+}
--- a/compat/strtol.c
+++ b/compat/strtol.c
@@ -0,0 +1,77 @@
+/*
+ * strtol.c --
+ *
+ *	Source code for the "strtol" library procedure.
+ *
+ * Copyright (c) 1988 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strtol --
+ *
+ *	Convert an ASCII string into an integer.
+ *
+ * Results:
+ *	The return value is the integer equivalent of string. If endPtr is
+ *	non-NULL, then *endPtr is filled in with the character after the last
+ *	one that was part of the integer. If string doesn't contain a valid
+ *	integer value, then zero is returned and *endPtr is set to string.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+long int
+strtol(
+    const char *string,		/* String of ASCII digits, possibly preceded
+				 * by white space. For bases greater than 10,
+				 * either lower- or upper-case digits may be
+				 * used. */
+    char **endPtr,		/* Where to store address of terminating
+				 * character, or NULL. */
+    int base)			/* Base for conversion. Must be less than 37.
+				 * If 0, then the base is chosen from the
+				 * leading characters of string: "0x" means
+				 * hex, "0" means octal, anything else means
+				 * decimal. */
+{
+    register const char *p;
+    long result;
+
+    /*
+     * Skip any leading blanks.
+     */
+
+    p = string;
+    while (isspace(UCHAR(*p))) {
+	p += 1;
+    }
+
+    /*
+     * Check for a sign.
+     */
+
+    if (*p == '-') {
+	p += 1;
+	result = -(strtoul(p, endPtr, base));
+    } else {
+	if (*p == '+') {
+	    p += 1;
+	}
+	result = strtoul(p, endPtr, base);
+    }
+    if ((result == 0) && (endPtr != 0) && (*endPtr == p)) {
+	*endPtr = (char *) string;
+    }
+    return result;
+}
--- a/compat/strtoul.c
+++ b/compat/strtoul.c
@@ -0,0 +1,214 @@
+/*
+ * strtoul.c --
+ *
+ *	Source code for the "strtoul" library procedure.
+ *
+ * Copyright (c) 1988 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+
+/*
+ * The table below is used to convert from ASCII digits to a numerical
+ * equivalent. It maps from '0' through 'z' to integers (100 for non-digit
+ * characters).
+ */
+
+static const char cvtIn[] = {
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9,		/* '0' - '9' */
+    100, 100, 100, 100, 100, 100, 100,		/* punctuation */
+    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,	/* 'A' - 'Z' */
+    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+    30, 31, 32, 33, 34, 35,
+    100, 100, 100, 100, 100, 100,		/* punctuation */
+    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,	/* 'a' - 'z' */
+    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+    30, 31, 32, 33, 34, 35};
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * strtoul --
+ *
+ *	Convert an ASCII string into an integer.
+ *
+ * Results:
+ *	The return value is the integer equivalent of string. If endPtr is
+ *	non-NULL, then *endPtr is filled in with the character after the last
+ *	one that was part of the integer. If string doesn't contain a valid
+ *	integer value, then zero is returned and *endPtr is set to string.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+unsigned long int
+strtoul(
+    const char *string,		/* String of ASCII digits, possibly preceded
+				 * by white space. For bases greater than 10,
+				 * either lower- or upper-case digits may be
+				 * used. */
+    char **endPtr,		/* Where to store address of terminating
+				 * character, or NULL. */
+    int base)			/* Base for conversion.  Must be less than 37.
+				 * If 0, then the base is chosen from the
+				 * leading characters of string: "0x" means
+				 * hex, "0" means octal, anything else means
+				 * decimal. */
+{
+    register const char *p;
+    register unsigned long int result = 0;
+    register unsigned digit;
+    int anyDigits = 0;
+    int negative=0;
+    int overflow=0;
+
+    /*
+     * Skip any leading blanks.
+     */
+
+    p = string;
+    while (isspace(UCHAR(*p))) {
+	p += 1;
+    }
+    if (*p == '-') {
+        negative = 1;
+        p += 1;
+    } else {
+        if (*p == '+') {
+            p += 1;
+        }
+    }
+
+    /*
+     * If no base was provided, pick one from the leading characters of the
+     * string.
+     */
+
+    if (base == 0) {
+	if (*p == '0') {
+	    p += 1;
+	    if ((*p == 'x') || (*p == 'X')) {
+		p += 1;
+		base = 16;
+	    } else {
+		/*
+		 * Must set anyDigits here, otherwise "0" produces a "no
+		 * digits" error.
+		 */
+
+		anyDigits = 1;
+		base = 8;
+	    }
+	} else {
+	    base = 10;
+	}
+    } else if (base == 16) {
+	/*
+	 * Skip a leading "0x" from hex numbers.
+	 */
+
+	if ((p[0] == '0') && ((p[1] == 'x') || (p[1] == 'X'))) {
+	    p += 2;
+	}
+    }
+
+    /*
+     * Sorry this code is so messy, but speed seems important. Do different
+     * things for base 8, 10, 16, and other.
+     */
+
+    if (base == 8) {
+	unsigned long maxres = ULONG_MAX >> 3;
+
+	for ( ; ; p += 1) {
+	    digit = *p - '0';
+	    if (digit > 7) {
+		break;
+	    }
+	    if (result > maxres) { overflow = 1; }
+	    result = (result << 3);
+	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
+	    result += digit;
+	    anyDigits = 1;
+	}
+    } else if (base == 10) {
+	unsigned long maxres = ULONG_MAX / 10;
+
+	for ( ; ; p += 1) {
+	    digit = *p - '0';
+	    if (digit > 9) {
+		break;
+	    }
+	    if (result > maxres) { overflow = 1; }
+	    result *= 10;
+	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
+	    result += digit;
+	    anyDigits = 1;
+	}
+    } else if (base == 16) {
+	unsigned long maxres = ULONG_MAX >> 4;
+
+	for ( ; ; p += 1) {
+	    digit = *p - '0';
+	    if (digit > ('z' - '0')) {
+		break;
+	    }
+	    digit = cvtIn[digit];
+	    if (digit > 15) {
+		break;
+	    }
+	    if (result > maxres) { overflow = 1; }
+	    result = (result << 4);
+	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
+	    result += digit;
+	    anyDigits = 1;
+	}
+    } else if (base >= 2 && base <= 36) {
+	unsigned long maxres = ULONG_MAX / base;
+
+	for ( ; ; p += 1) {
+	    digit = *p - '0';
+	    if (digit > ('z' - '0')) {
+		break;
+	    }
+	    digit = cvtIn[digit];
+	    if (digit >= ( (unsigned) base )) {
+		break;
+	    }
+	    if (result > maxres) { overflow = 1; }
+	    result *= base;
+	    if (digit > (ULONG_MAX - result)) { overflow = 1; }
+	    result += digit;
+	    anyDigits = 1;
+	}
+    }
+
+    /*
+     * See if there were any digits at all.
+     */
+
+    if (!anyDigits) {
+	p = string;
+    }
+
+    if (endPtr != 0) {
+	/* unsafe, but required by the strtoul prototype */
+	*endPtr = (char *) p;
+    }
+
+    if (overflow) {
+	errno = ERANGE;
+	return ULONG_MAX;
+    }
+    if (negative) {
+	return -result;
+    }
+    return result;
+}
--- a/compat/unistd.h
+++ b/compat/unistd.h
@@ -0,0 +1,76 @@
+/*
+ * unistd.h --
+ *
+ *      Macros, constants and prototypes for Posix conformance.
+ *
+ * Copyright 1989 Regents of the University of California Permission to use,
+ * copy, modify, and distribute this software and its documentation for any
+ * purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies. The University of California makes
+ * no representations about the suitability of this software for any purpose.
+ * It is provided "as is" without express or implied warranty.
+ */
+
+#ifndef _UNISTD
+#define _UNISTD
+
+#include <sys/types.h>
+
+#ifndef NULL
+#define NULL    0
+#endif
+
+/*
+ * Strict POSIX stuff goes here. Extensions go down below, in the ifndef
+ * _POSIX_SOURCE section.
+ */
+
+extern void		_exit(int status);
+extern int		access(const char *path, int mode);
+extern int		chdir(const char *path);
+extern int		chown(const char *path, uid_t owner, gid_t group);
+extern int		close(int fd);
+extern int		dup(int oldfd);
+extern int		dup2(int oldfd, int newfd);
+extern int		execl(const char *path, ...);
+extern int		execle(const char *path, ...);
+extern int		execlp(const char *file, ...);
+extern int		execv(const char *path, char **argv);
+extern int		execve(const char *path, char **argv, char **envp);
+extern int		execvpw(const char *file, char **argv);
+extern pid_t		fork(void);
+extern char *		getcwd(char *buf, size_t size);
+extern gid_t		getegid(void);
+extern uid_t		geteuid(void);
+extern gid_t		getgid(void);
+extern int		getgroups(int bufSize, int *buffer);
+extern pid_t		getpid(void);
+extern uid_t		getuid(void);
+extern int		isatty(int fd);
+extern long		lseek(int fd, long offset, int whence);
+extern int		pipe(int *fildes);
+extern int		read(int fd, char *buf, size_t size);
+extern int		setgid(gid_t group);
+extern int		setuid(uid_t user);
+extern unsigned		sleep(unsigned seconds);
+extern char *		ttyname(int fd);
+extern int		unlink(const char *path);
+extern int		write(int fd, const char *buf, size_t size);
+
+#ifndef	_POSIX_SOURCE
+extern char *		crypt(const char *, const char *);
+extern int		fchown(int fd, uid_t owner, gid_t group);
+extern int		flock(int fd, int operation);
+extern int		ftruncate(int fd, unsigned long length);
+extern int		ioctl(int fd, int request, ...);
+extern int		readlink(const char *path, char *buf, int bufsize);
+extern int		setegid(gid_t group);
+extern int		seteuidw(uid_t user);
+extern int		setreuid(int ruid, int euid);
+extern int		symlink(const char *, const char *);
+extern int		ttyslot(void);
+extern int		truncate(const char *path, unsigned long length);
+extern int		vfork(void);
+#endif /* _POSIX_SOURCE */
+
+#endif /* _UNISTD */
--- a/compat/waitpid.c
+++ b/compat/waitpid.c
@@ -0,0 +1,168 @@
+/*
+ * waitpid.c --
+ *
+ *	This procedure emulates the POSIX waitpid kernel call on BSD systems
+ *	that don't have waitpid but do have wait3. This code is based on a
+ *	prototype version written by Mark Diekhans and Karl Lehenbauer.
+ *
+ * Copyright (c) 1993 The Regents of the University of California.
+ * Copyright (c) 1994 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclPort.h"
+
+#ifndef pid_t
+#define pid_t int
+#endif
+
+/*
+ * A linked list of the following structures is used to keep track of
+ * processes for which we received notification from the kernel, but the
+ * application hasn't waited for them yet (this can happen because wait may
+ * not return the process we really want). We save the information here until
+ * the application finally does wait for the process.
+ */
+
+typedef struct WaitInfo {
+    pid_t pid;			/* Pid of process that exited. */
+    WAIT_STATUS_TYPE status;	/* Status returned when child exited or
+				 * suspended. */
+    struct WaitInfo *nextPtr;	/* Next in list of exited processes. */
+} WaitInfo;
+
+static WaitInfo *deadList = NULL;
+				/* First in list of all dead processes. */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * waitpid --
+ *
+ *	This procedure emulates the functionality of the POSIX waitpid kernel
+ *	call, using the BSD wait3 kernel call. Note: it doesn't emulate
+ *	absolutely all of the waitpid functionality, in that it doesn't
+ *	support pid's of 0 or < -1.
+ *
+ * Results:
+ *	-1 is returned if there is an error in the wait kernel call. Otherwise
+ *	the pid of an exited or suspended process is returned and *statusPtr
+ *	is set to the status value of the process.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+#ifdef waitpid
+#   undef waitpid
+#endif
+
+pid_t
+waitpid(
+    pid_t pid,			/* The pid to wait on. Must be -1 or greater
+				 * than zero. */
+    int *statusPtr,		/* Where to store wait status for the
+				 * process. */
+    int options)		/* OR'ed combination of WNOHANG and
+				 * WUNTRACED. */
+{
+    register WaitInfo *waitPtr, *prevPtr;
+    pid_t result;
+    WAIT_STATUS_TYPE status;
+
+    if ((pid < -1) || (pid == 0)) {
+	errno = EINVAL;
+	return -1;
+    }
+
+    /*
+     * See if there's a suitable process that has already stopped or exited.
+     * If so, remove it from the list of exited processes and return its
+     * information.
+     */
+
+    for (waitPtr = deadList, prevPtr = NULL; waitPtr != NULL;
+	    prevPtr = waitPtr, waitPtr = waitPtr->nextPtr) {
+	if ((pid != waitPtr->pid) && (pid != -1)) {
+	    continue;
+	}
+	if (!(options & WUNTRACED) && (WIFSTOPPED(waitPtr->status))) {
+	    continue;
+	}
+	result = waitPtr->pid;
+	*statusPtr = *((int *) &waitPtr->status);
+	if (prevPtr == NULL) {
+	    deadList = waitPtr->nextPtr;
+	} else {
+	    prevPtr->nextPtr = waitPtr->nextPtr;
+	}
+	ckfree((char *) waitPtr);
+	return result;
+    }
+
+    /*
+     * Wait for any process to stop or exit. If it's an acceptable one then
+     * return it to the caller; otherwise store information about it in the
+     * list of exited processes and try again. On systems that have only wait
+     * but not wait3, there are several situations we can't handle, but we do
+     * the best we can (e.g. can still handle some combinations of options by
+     * invoking wait instead of wait3).
+     */
+
+    while (1) {
+#if NO_WAIT3
+	if (options & WNOHANG) {
+	    return 0;
+	}
+	if (options != 0) {
+	    errno = EINVAL;
+	    return -1;
+	}
+	result = wait(&status);
+#else
+	result = wait3(&status, options, 0);
+#endif
+	if ((result == -1) && (errno == EINTR)) {
+	    continue;
+	}
+	if (result <= 0) {
+	    return result;
+	}
+
+	if ((pid != result) && (pid != -1)) {
+	    goto saveInfo;
+	}
+	if (!(options & WUNTRACED) && (WIFSTOPPED(status))) {
+	    goto saveInfo;
+	}
+	*statusPtr = *((int *) &status);
+	return result;
+
+	/*
+	 * Can't return this info to caller. Save it in the list of stopped or
+	 * exited processes. Tricky point: first check for an existing entry
+	 * for the process and overwrite it if it exists (e.g. a previously
+	 * stopped process might now be dead).
+	 */
+
+    saveInfo:
+	for (waitPtr = deadList; waitPtr != NULL; waitPtr = waitPtr->nextPtr) {
+	    if (waitPtr->pid == result) {
+		waitPtr->status = status;
+		goto waitAgain;
+	    }
+	}
+	waitPtr = (WaitInfo *) ckalloc(sizeof(WaitInfo));
+	waitPtr->pid = result;
+	waitPtr->status = status;
+	waitPtr->nextPtr = deadList;
+	deadList = waitPtr;
+
+    waitAgain:
+	continue;
+    }
+}
--- a/compat/zlib/CMakeLists.txt
+++ b/compat/zlib/CMakeLists.txt
@@ -3,7 +3,7 @@ set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)

 project(zlib C)

-set(VERSION "1.2.11")
+set(VERSION "1.2.8")

 option(ASM686 "Enable building i686 assembly implementation")
 option(AMD64 "Enable building amd64 assembly implementation")
--- a/compat/zlib/ChangeLog
+++ b/compat/zlib/ChangeLog
--- a/compat/zlib/FAQ
+++ b/compat/zlib/FAQ
--- a/compat/zlib/INDEX
+++ b/compat/zlib/INDEX
--- a/compat/zlib/Makefile
+++ b/compat/zlib/Makefile
--- a/compat/zlib/Makefile.in
+++ b/compat/zlib/Makefile.in
@@ -0,0 +1,288 @@
+# Makefile for zlib
+# Copyright (C) 1995-2013 Jean-loup Gailly, Mark Adler
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile and test, type:
+#    ./configure; make test
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+
+# To use the asm code, type:
+#    cp contrib/asm?86/match.S ./match.S
+#    make LOC=-DASMV OBJA=match.o
+
+# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
+#    make install
+# To install in $HOME instead of /usr/local, use:
+#    make install prefix=$HOME
+
+CC=cc
+
+CFLAGS=-O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DDEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+SFLAGS=-O
+LDFLAGS=
+TEST_LDFLAGS=-L. libz.a
+LDSHARED=$(CC)
+CPP=$(CC) -E
+
+STATICLIB=libz.a
+SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.2.8
+SHAREDLIBM=libz.so.1
+LIBS=$(STATICLIB) $(SHAREDLIBV)
+
+AR=ar
+ARFLAGS=rc
+RANLIB=ranlib
+LDCONFIG=ldconfig
+LDSHAREDLIBC=-lc
+TAR=tar
+SHELL=/bin/sh
+EXE=
+
+prefix = /usr/local
+exec_prefix = ${prefix}
+libdir = ${exec_prefix}/lib
+sharedlibdir = ${libdir}
+includedir = ${prefix}/include
+mandir = ${prefix}/share/man
+man3dir = ${mandir}/man3
+pkgconfigdir = ${libdir}/pkgconfig
+
+OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
+OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
+OBJC = $(OBJZ) $(OBJG)
+
+PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
+PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
+
+# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
+OBJA =
+PIC_OBJA =
+
+OBJS = $(OBJC) $(OBJA)
+
+PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
+
+all: static shared
+
+static: example$(EXE) minigzip$(EXE)
+
+shared: examplesh$(EXE) minigzipsh$(EXE)
+
+all64: example64$(EXE) minigzip64$(EXE)
+
+check: test
+
+test: all teststatic testshared
+
+teststatic: static
+	@TMPST=tmpst_$$; \
+	if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
+	  echo '		*** zlib test OK ***'; \
+	else \
+	  echo '		*** zlib test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMPST
+
+testshared: shared
+	@LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+	LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
+	DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
+	SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
+	TMPSH=tmpsh_$$; \
+	if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
+	  echo '		*** zlib shared test OK ***'; \
+	else \
+	  echo '		*** zlib shared test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMPSH
+
+test64: all64
+	@TMP64=tmp64_$$; \
+	if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
+	  echo '		*** zlib 64-bit test OK ***'; \
+	else \
+	  echo '		*** zlib 64-bit test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMP64
+
+infcover.o: test/infcover.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -c -o $@ test/infcover.c
+
+infcover: infcover.o libz.a
+	$(CC) $(CFLAGS) -o $@ infcover.o libz.a
+
+cover: infcover
+	rm -f *.gcda
+	./infcover
+	gcov inf*.c
+
+libz.a: $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+
+match.lo: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c -fPIC _match.s
+	mv _match.o match.lo
+	rm -f _match.s
+
+example.o: test/example.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -c -o $@ test/example.c
+
+minigzip.o: test/minigzip.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -c -o $@ test/minigzip.c
+
+example64.o: test/example.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/example.c
+
+minigzip64.o: test/minigzip.c zlib.h zconf.h
+	$(CC) $(CFLAGS) -I. -D_FILE_OFFSET_BITS=64 -c -o $@ test/minigzip.c
+
+.SUFFIXES: .lo
+
+.c.lo:
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $<
+	-@mv objs/$*.o $@
+
+placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
+	$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
+	rm -f $(SHAREDLIB) $(SHAREDLIBM)
+	ln -s $@ $(SHAREDLIB)
+	ln -s $@ $(SHAREDLIBM)
+	-@rmdir objs
+
+example$(EXE): example.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
+
+minigzip$(EXE): minigzip.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+
+examplesh$(EXE): example.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
+
+minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+
+example64$(EXE): example64.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
+
+minigzip64$(EXE): minigzip64.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
+
+install-libs: $(LIBS)
+	-@if [ ! -d $(DESTDIR)$(exec_prefix)  ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
+	-@if [ ! -d $(DESTDIR)$(libdir)       ]; then mkdir -p $(DESTDIR)$(libdir); fi
+	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
+	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+	cp $(STATICLIB) $(DESTDIR)$(libdir)
+	chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
+	-@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
+	-@if test -n "$(SHAREDLIBV)"; then \
+	  cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
+	  echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
+	  chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+	  echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
+	fi
+	cp zlib.3 $(DESTDIR)$(man3dir)
+	chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+	cp zlib.pc $(DESTDIR)$(pkgconfigdir)
+	chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
+# The ranlib in install is needed on NeXTSTEP which checks file times
+# ldconfig is for Linux
+
+install: install-libs
+	-@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
+	cp zlib.h zconf.h $(DESTDIR)$(includedir)
+	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+
+uninstall:
+	cd $(DESTDIR)$(includedir) && rm -f zlib.h zconf.h
+	cd $(DESTDIR)$(libdir) && rm -f libz.a; \
+	if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
+	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
+	fi
+	cd $(DESTDIR)$(man3dir) && rm -f zlib.3
+	cd $(DESTDIR)$(pkgconfigdir) && rm -f zlib.pc
+
+docs: zlib.3.pdf
+
+zlib.3.pdf: zlib.3
+	groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf
+
+zconf.h.cmakein: zconf.h.in
+	-@ TEMPFILE=zconfh_$$; \
+	echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\
+	sed -f $$TEMPFILE zconf.h.in > zconf.h.cmakein &&\
+	touch -r zconf.h.in zconf.h.cmakein &&\
+	rm $$TEMPFILE
+
+zconf: zconf.h.in
+	cp -p zconf.h.in zconf.h
+
+mostlyclean: clean
+clean:
+	rm -f *.o *.lo *~ \
+	   example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+	   example64$(EXE) minigzip64$(EXE) \
+	   infcover \
+	   libz.* foo.gz so_locations \
+	   _match.s maketree contrib/infback9/*.o
+	rm -rf objs
+	rm -f *.gcda *.gcno *.gcov
+	rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
+
+maintainer-clean: distclean
+distclean: clean zconf zconf.h.cmakein docs
+	rm -f Makefile zlib.pc configure.log
+	-@rm -f .DS_Store
+	-@printf 'all:\n\t-@echo "Please use ./configure first.  Thank you."\n' > Makefile
+	-@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile
+	-@touch -r Makefile.in Makefile
+
+tags:
+	etags *.[ch]
+
+depend:
+	makedepend -- $(CFLAGS) -- *.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o zutil.o: zutil.h zlib.h zconf.h
+gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h
+compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h
+crc32.o: zutil.h zlib.h zconf.h crc32.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+
+adler32.lo zutil.lo: zutil.h zlib.h zconf.h
+gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h
+compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h
+crc32.lo: zutil.h zlib.h zconf.h crc32.h
+deflate.lo: deflate.h zutil.h zlib.h zconf.h
+infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h
+inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.lo: zutil.h zlib.h zconf.h inftrees.h
+trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h
--- a/compat/zlib/README
+++ b/compat/zlib/README
@@ -0,0 +1,115 @@
+ZLIB DATA COMPRESSION LIBRARY
+
+zlib 1.2.8 is a general purpose data compression library.  All the code is
+thread safe.  The data format used by the zlib library is described by RFCs
+(Request for Comments) 1950 to 1952 in the files
+http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+rfc1952 (gzip format).
+
+All functions of the compression library are documented in the file zlib.h
+(volunteer to write man pages welcome, contact zlib@gzip.org).  A usage example
+of the library is given in the file test/example.c which also tests that
+the library is working correctly.  Another example is given in the file
+test/minigzip.c.  The compression library itself is composed of all source
+files in the root directory.
+
+To compile all files and run the test program, follow the instructions given at
+the top of Makefile.in.  In short "./configure; make test", and if that goes
+well, "make install" should work for most flavors of Unix.  For Windows, use
+one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
+make_vms.com.
+
+Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
+<info@winimage.com> for the Windows DLL version.  The zlib home page is
+http://zlib.net/ .  Before reporting a problem, please check this site to
+verify that you have the latest version of zlib; otherwise get the latest
+version and check whether the problem still exists or not.
+
+PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
+
+Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
+issue of Dr.  Dobb's Journal; a copy of the article is available at
+http://marknelson.us/1997/01/01/zlib-engine/ .
+
+The changes made in version 1.2.8 are documented in the file ChangeLog.
+
+Unsupported third party contributions are provided in directory contrib/ .
+
+zlib is available in Java using the java.util.zip package, documented at
+http://java.sun.com/developer/technicalArticles/Programming/compression/ .
+
+A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
+at CPAN (Comprehensive Perl Archive Network) sites, including
+http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
+
+A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
+available in Python 1.5 and later versions, see
+http://docs.python.org/library/zlib.html .
+
+zlib is built into tcl: http://wiki.tcl.tk/4610 .
+
+An experimental package to read and write files in .zip format, written on top
+of zlib by Gilles Vollant <info@winimage.com>, is available in the
+contrib/minizip directory of zlib.
+
+
+Notes for some targets:
+
+- For Windows DLL versions, please see win32/DLL_FAQ.txt
+
+- For 64-bit Irix, deflate.c must be compiled without any optimization. With
+  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
+  compiler flag). The compiler bug has been reported to SGI.
+
+- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
+  when compiled with cc.
+
+- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
+  necessary to get gzprintf working correctly. This is done by configure.
+
+- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
+  other compilers. Use "make test" to check your compiler.
+
+- gzdopen is not supported on RISCOS or BEOS.
+
+- For PalmOs, see http://palmzlib.sourceforge.net/
+
+
+Acknowledgments:
+
+  The deflate format used by zlib was defined by Phil Katz.  The deflate and
+  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
+  people who reported problems and suggested various improvements in zlib; they
+  are too numerous to cite here.
+
+Copyright notice:
+
+ (C) 1995-2013 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+If you use the zlib library in a product, we would appreciate *not* receiving
+lengthy legal documents to sign.  The sources are provided for free but without
+warranty of any kind.  The library has been entirely written by Jean-loup
+Gailly and Mark Adler; it does not include third-party code.
+
+If you redistribute modified sources, we would appreciate that you include in
+the file ChangeLog history information documenting your changes.  Please read
+the FAQ for more information on the distribution of modified source versions.
--- a/compat/zlib/adler32.c
+++ b/compat/zlib/adler32.c
@@ -1,5 +1,5 @@
 /* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-2011, 2016 Mark Adler
+ * Copyright (C) 1995-2011 Mark Adler
 * For conditions of distribution and use, see copyright notice in zlib.h
 */

@@ -7,9 +7,11 @@

 #include "zutil.h"

+#define local static
+
 local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));

-#define BASE 65521U     /* largest prime smaller than 65536 */
+#define BASE 65521      /* largest prime smaller than 65536 */
 #define NMAX 5552
 /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */

@@ -60,10 +62,10 @@ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
 #endif

 /* ========================================================================= */
-uLong ZEXPORT adler32_z(adler, buf, len)
+uLong ZEXPORT adler32(adler, buf, len)
    uLong adler;
    const Bytef *buf;
-    z_size_t len;
+    uInt len;
 {
    unsigned long sum2;
    unsigned n;
@@ -130,15 +132,6 @@ uLong ZEXPORT adler32_z(adler, buf, len)
    return adler | (sum2 << 16);
 }

-/* ========================================================================= */
-uLong ZEXPORT adler32(adler, buf, len)
-    uLong adler;
-    const Bytef *buf;
-    uInt len;
-{
-    return adler32_z(adler, buf, len);
-}
-
 /* ========================================================================= */
 local uLong adler32_combine_(adler1, adler2, len2)
    uLong adler1;
@@ -163,7 +156,7 @@ local uLong adler32_combine_(adler1, adler2, len2)
    sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
    if (sum1 >= BASE) sum1 -= BASE;
    if (sum1 >= BASE) sum1 -= BASE;
-    if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1);
+    if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
    if (sum2 >= BASE) sum2 -= BASE;
    return sum1 | (sum2 << 16);
 }
--- a/compat/zlib/amiga/Makefile.pup
+++ b/compat/zlib/amiga/Makefile.pup
--- a/compat/zlib/amiga/Makefile.sas
+++ b/compat/zlib/amiga/Makefile.sas
--- a/compat/zlib/as400/bndsrc
+++ b/compat/zlib/as400/bndsrc
@@ -0,0 +1,215 @@
+STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB')
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.1.3 entry points.                                    */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      ADLER32      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("adler32")
+
+/********************************************************************/
+/*   *MODULE      COMPRESS     ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("compress")
+  EXPORT SYMBOL("compress2")
+
+/********************************************************************/
+/*   *MODULE      CRC32        ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("crc32")
+  EXPORT SYMBOL("get_crc_table")
+
+/********************************************************************/
+/*   *MODULE      DEFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("deflate")
+  EXPORT SYMBOL("deflateEnd")
+  EXPORT SYMBOL("deflateSetDictionary")
+  EXPORT SYMBOL("deflateCopy")
+  EXPORT SYMBOL("deflateReset")
+  EXPORT SYMBOL("deflateParams")
+  EXPORT SYMBOL("deflatePrime")
+  EXPORT SYMBOL("deflateInit_")
+  EXPORT SYMBOL("deflateInit2_")
+
+/********************************************************************/
+/*   *MODULE      GZIO         ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzopen")
+  EXPORT SYMBOL("gzdopen")
+  EXPORT SYMBOL("gzsetparams")
+  EXPORT SYMBOL("gzread")
+  EXPORT SYMBOL("gzwrite")
+  EXPORT SYMBOL("gzprintf")
+  EXPORT SYMBOL("gzputs")
+  EXPORT SYMBOL("gzgets")
+  EXPORT SYMBOL("gzputc")
+  EXPORT SYMBOL("gzgetc")
+  EXPORT SYMBOL("gzflush")
+  EXPORT SYMBOL("gzseek")
+  EXPORT SYMBOL("gzrewind")
+  EXPORT SYMBOL("gztell")
+  EXPORT SYMBOL("gzeof")
+  EXPORT SYMBOL("gzclose")
+  EXPORT SYMBOL("gzerror")
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflate")
+  EXPORT SYMBOL("inflateEnd")
+  EXPORT SYMBOL("inflateSetDictionary")
+  EXPORT SYMBOL("inflateSync")
+  EXPORT SYMBOL("inflateReset")
+  EXPORT SYMBOL("inflateInit_")
+  EXPORT SYMBOL("inflateInit2_")
+  EXPORT SYMBOL("inflateSyncPoint")
+
+/********************************************************************/
+/*   *MODULE      UNCOMPR      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("uncompress")
+
+/********************************************************************/
+/*   *MODULE      ZUTIL        ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("zlibVersion")
+  EXPORT SYMBOL("zError")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.1 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      COMPRESS     ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("compressBound")
+
+/********************************************************************/
+/*   *MODULE      DEFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("deflateBound")
+
+/********************************************************************/
+/*   *MODULE      GZIO         ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzungetc")
+  EXPORT SYMBOL("gzclearerr")
+
+/********************************************************************/
+/*   *MODULE      INFBACK      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateBack")
+  EXPORT SYMBOL("inflateBackEnd")
+  EXPORT SYMBOL("inflateBackInit_")
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateCopy")
+
+/********************************************************************/
+/*   *MODULE      ZUTIL        ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("zlibCompileFlags")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.5 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      ADLER32      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("adler32_combine")
+  EXPORT SYMBOL("adler32_combine64")
+
+/********************************************************************/
+/*   *MODULE      CRC32        ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("crc32_combine")
+  EXPORT SYMBOL("crc32_combine64")
+
+/********************************************************************/
+/*   *MODULE      GZLIB        ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzbuffer")
+  EXPORT SYMBOL("gzoffset")
+  EXPORT SYMBOL("gzoffset64")
+  EXPORT SYMBOL("gzopen64")
+  EXPORT SYMBOL("gzseek64")
+  EXPORT SYMBOL("gztell64")
+
+/********************************************************************/
+/*   *MODULE      GZREAD       ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzclose_r")
+
+/********************************************************************/
+/*   *MODULE      GZWRITE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzclose_w")
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateMark")
+  EXPORT SYMBOL("inflatePrime")
+  EXPORT SYMBOL("inflateReset2")
+  EXPORT SYMBOL("inflateUndermine")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.6 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      DEFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("deflateResetKeep")
+  EXPORT SYMBOL("deflatePending")
+
+/********************************************************************/
+/*   *MODULE      GZWRITE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("gzgetc_")
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateResetKeep")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.8 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+/********************************************************************/
+/*   *MODULE      INFLATE      ZLIB         01/02/01  00:15:09      */
+/********************************************************************/
+
+  EXPORT SYMBOL("inflateGetDictionary")
+
+ENDPGMEXP
--- a/compat/zlib/as400/compile.clp
+++ b/compat/zlib/as400/compile.clp
@@ -0,0 +1,110 @@
+/******************************************************************************/
+/*                                                                            */
+/*  ZLIB                                                                      */
+/*                                                                            */
+/*    Compile sources into modules and link them into a service program.      */
+/*                                                                            */
+/******************************************************************************/
+
+             PGM
+
+/*      Configuration adjustable parameters.                                  */
+
+             DCL        VAR(&SRCLIB) TYPE(*CHAR) LEN(10) +
+                          VALUE('ZLIB')                         /* Source library. */
+             DCL        VAR(&SRCFILE) TYPE(*CHAR) LEN(10) +
+                          VALUE('SOURCES')                      /* Source member file. */
+             DCL        VAR(&CTLFILE) TYPE(*CHAR) LEN(10) +
+                          VALUE('TOOLS')                        /* Control member file. */
+
+             DCL        VAR(&MODLIB) TYPE(*CHAR) LEN(10) +
+                          VALUE('ZLIB')                         /* Module library. */
+
+             DCL        VAR(&SRVLIB) TYPE(*CHAR) LEN(10) +
+                          VALUE('LGPL')                         /* Service program library. */
+
+             DCL        VAR(&CFLAGS) TYPE(*CHAR) +
+                          VALUE('OPTIMIZE(40)')                 /* Compile options. */
+
+             DCL        VAR(&TGTRLS) TYPE(*CHAR) +
+                          VALUE('V5R3M0')                       /* Target release. */
+
+
+/*      Working storage.                                                      */
+
+             DCL        VAR(&CMDLEN) TYPE(*DEC) LEN(15 5) VALUE(300)    /* Command length. */
+             DCL        VAR(&CMD) TYPE(*CHAR) LEN(512)
+             DCL        VAR(&FIXDCMD) TYPE(*CHAR) LEN(512)
+
+
+/*      Compile sources into modules.                                         */
+
+             CHGVAR     VAR(&FIXDCMD) VALUE('CRTCMOD' *BCAT &CFLAGS *BCAT      +
+                        'SYSIFCOPT(*IFS64IO)' *BCAT                            +
+                        'DEFINE(''_LARGEFILE64_SOURCE''' *BCAT                 +
+                        '''_LFS64_LARGEFILE=1'') TGTRLS(' *TCAT &TGTRLS *TCAT  +
+                        ') SRCFILE(' *TCAT &SRCLIB *TCAT '/' *TCAT             +
+                        &SRCFILE *TCAT ') MODULE(' *TCAT &MODLIB *TCAT '/')
+
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'ADLER32)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'COMPRESS)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'CRC32)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'DEFLATE)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZCLOSE)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZLIB)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZREAD)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'GZWRITE)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFBACK)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFFAST)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFLATE)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'INFTREES)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'TREES)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'UNCOMPR)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+             CHGVAR     VAR(&CMD) VALUE(&FIXDCMD *TCAT 'ZUTIL)')
+             CALL       PGM(QCMDEXC) PARM(&CMD &CMDLEN)
+
+
+/*      Link modules into a service program.                                  */
+
+             CRTSRVPGM  SRVPGM(&SRVLIB/ZLIB) +
+                          MODULE(&MODLIB/ADLER32     &MODLIB/COMPRESS    +
+                                 &MODLIB/CRC32       &MODLIB/DEFLATE     +
+                                 &MODLIB/GZCLOSE     &MODLIB/GZLIB       +
+                                 &MODLIB/GZREAD      &MODLIB/GZWRITE     +
+                                 &MODLIB/INFBACK     &MODLIB/INFFAST     +
+                                 &MODLIB/INFLATE     &MODLIB/INFTREES    +
+                                 &MODLIB/TREES       &MODLIB/UNCOMPR     +
+                                 &MODLIB/ZUTIL)                          +
+                          SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC)       +
+                          TEXT('ZLIB 1.2.8') TGTRLS(&TGTRLS)
+
+             ENDPGM
--- a/compat/zlib/as400/readme.txt
+++ b/compat/zlib/as400/readme.txt
@@ -0,0 +1,115 @@
+        ZLIB version 1.2.8 for AS400 installation instructions
+
+I) From an AS400 *SAVF file:
+
+1)      Unpacking archive to an AS400 save file
+
+On the AS400:
+
+_       Create the ZLIB AS400 library:
+
+        CRTLIB LIB(ZLIB) TYPE(*PROD) TEXT('ZLIB compression API library')
+
+_       Create a work save file, for example:
+
+                CRTSAVF FILE(ZLIB/ZLIBSAVF)
+
+On a PC connected to the target AS400:
+
+_       Unpack the save file image to a PC file "ZLIBSAVF"
+_       Upload this file into the save file on the AS400, for example
+                using ftp in BINARY mode.
+
+
+2)      Populating the ZLIB AS400 source library
+
+On the AS400:
+
+_       Extract the saved objects into the ZLIB AS400 library using:
+
+RSTOBJ OBJ(*ALL) SAVLIB(ZLIB) DEV(*SAVF) SAVF(ZLIB/ZLIBSAVF) RSTLIB(ZLIB)
+
+
+3)      Customize installation:
+
+_       Edit CL member ZLIB/TOOLS(COMPILE) and change parameters if needed,
+                according to the comments.
+
+_       Compile this member with:
+
+        CRTCLPGM PGM(ZLIB/COMPILE) SRCFILE(ZLIB/TOOLS) SRCMBR(COMPILE)
+
+
+4)      Compile and generate the service program:
+
+_       This can now be done by executing:
+
+        CALL PGM(ZLIB/COMPILE)
+
+
+
+II) From the original source distribution:
+
+1)      On the AS400, create the source library:
+
+        CRTLIB LIB(ZLIB) TYPE(*PROD) TEXT('ZLIB compression API library')
+
+2)      Create the source files:
+
+        CRTSRCPF FILE(ZLIB/SOURCES) RCDLEN(112) TEXT('ZLIB library modules')
+        CRTSRCPF FILE(ZLIB/H)       RCDLEN(112) TEXT('ZLIB library includes')
+        CRTSRCPF FILE(ZLIB/TOOLS)   RCDLEN(112) TEXT('ZLIB library control utilities')
+
+3)      From the machine hosting the distribution files, upload them (with
+                FTP in text mode, for example) according to the following table:
+
+    Original    AS400   AS400    AS400 AS400
+    file        file    member   type  description
+                SOURCES                Original ZLIB C subprogram sources
+    adler32.c           ADLER32  C     ZLIB - Compute the Adler-32 checksum of a dta strm
+    compress.c          COMPRESS C     ZLIB - Compress a memory buffer
+    crc32.c             CRC32    C     ZLIB - Compute the CRC-32 of a data stream
+    deflate.c           DEFLATE  C     ZLIB - Compress data using the deflation algorithm
+    gzclose.c           GZCLOSE  C     ZLIB - Close .gz files
+    gzlib.c             GZLIB    C     ZLIB - Miscellaneous .gz files IO support
+    gzread.c            GZREAD   C     ZLIB - Read .gz files
+    gzwrite.c           GZWRITE  C     ZLIB - Write .gz files
+    infback.c           INFBACK  C     ZLIB - Inflate using a callback interface
+    inffast.c           INFFAST  C     ZLIB - Fast proc. literals & length/distance pairs
+    inflate.c           INFLATE  C     ZLIB - Interface to inflate modules
+    inftrees.c          INFTREES C     ZLIB - Generate Huffman trees for efficient decode
+    trees.c             TREES    C     ZLIB - Output deflated data using Huffman coding
+    uncompr.c           UNCOMPR  C     ZLIB - Decompress a memory buffer
+    zutil.c             ZUTIL    C     ZLIB - Target dependent utility functions
+                H                      Original ZLIB C and ILE/RPG include files
+    crc32.h             CRC32    C     ZLIB - CRC32 tables
+    deflate.h           DEFLATE  C     ZLIB - Internal compression state
+    gzguts.h            GZGUTS   C     ZLIB - Definitions for the gzclose module
+    inffast.h           INFFAST  C     ZLIB - Header to use inffast.c
+    inffixed.h          INFFIXED C     ZLIB - Table for decoding fixed codes
+    inflate.h           INFLATE  C     ZLIB - Internal inflate state definitions
+    inftrees.h          INFTREES C     ZLIB - Header to use inftrees.c
+    trees.h             TREES    C     ZLIB - Created automatically with -DGEN_TREES_H
+    zconf.h             ZCONF    C     ZLIB - Compression library configuration
+    zlib.h              ZLIB     C     ZLIB - Compression library C user interface
+    as400/zlib.inc      ZLIB.INC RPGLE ZLIB - Compression library ILE RPG user interface
+    zutil.h             ZUTIL    C     ZLIB - Internal interface and configuration
+                TOOLS                  Building source software & AS/400 README
+    as400/bndsrc        BNDSRC         Entry point exportation list
+    as400/compile.clp   COMPILE  CLP   Compile sources & generate service program
+    as400/readme.txt    README   TXT   Installation instructions
+
+4)      Continue as in I)3).
+
+
+
+
+Notes:  For AS400 ILE RPG programmers, a /copy member defining the ZLIB
+                API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC).
+                Please read comments in this member for more information.
+
+        Remember that most foreign textual data are ASCII coded: this
+                implementation does not handle conversion from/to ASCII, so
+                text data code conversions must be done explicitely.
+
+        Mainly for the reason above, always open zipped files in binary mode.
--- a/compat/zlib/as400/zlib.inc
+++ b/compat/zlib/as400/zlib.inc
@@ -1,7 +1,7 @@
      *  ZLIB.INC - Interface to the general purpose compression library
      *
      *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
-      *  Version 1.2.11
+      *  Version 1.2.8
      *
      *
      *  WARNING:
@@ -22,12 +22,12 @@
      *
      *  Versioning information.
      *
-     D ZLIB_VERSION    C                   '1.2.11'
-     D ZLIB_VERNUM     C                   X'12a0'
+     D ZLIB_VERSION    C                   '1.2.8'
+     D ZLIB_VERNUM     C                   X'1280'
     D ZLIB_VER_MAJOR  C                   1
     D ZLIB_VER_MINOR  C                   2
     D ZLIB_VER_REVISION...
-     D                 C                   11
+     D                 C                   8
     D ZLIB_VER_SUBREVISION...
     D                 C                   0
      *
@@ -50,7 +50,7 @@
     D Z_DATA_ERROR    C                   -3
     D Z_MEM_ERROR     C                   -4
     D Z_BUF_ERROR     C                   -5
-     D Z_VERSION_ERROR C                   -6
+     DZ_VERSION_ERROR  C                   -6
      *
     D Z_NO_COMPRESSION...
     D                 C                   0
@@ -80,7 +80,6 @@
      *
     D z_streamp       S               *                                        Stream struct ptr
     D gzFile          S               *                                        File pointer
-     D gz_headerp      S               *
     D z_off_t         S             10i 0                                      Stream offsets
     D z_off64_t       S             20i 0                                      Stream offsets
      *
@@ -133,12 +132,6 @@
     D  source                    65535    const options(*varsize)              Source buffer
     D  sourceLen                    10U 0 value                                Source length
      *
-     D uncompress2     PR            10I 0 extproc('uncompress2')
-     D  dest                      65535    options(*varsize)                    Destination buffer
-     D  destLen                      10U 0                                      Destination length
-     D  source                    65535    const options(*varsize)              Source buffer
-     D  sourceLen                    10U 0                                      Source length
-      *
      /if not defined(LARGE_FILES)
     D gzopen          PR                  extproc('gzopen')
     D                                     like(gzFile)
@@ -175,23 +168,11 @@
     D  buf                       65535    options(*varsize)                    Buffer
     D  len                          10u 0 value                                Buffer length
      *
-     D gzfread          PR           20I 0 extproc('gzfread')
-     D  buf                       65535    options(*varsize)                    Buffer
-     D  size                         20u 0 value                                Buffer length
-     D  nitems                       20u 0 value                                Buffer length
-     D  file                               value like(gzFile)                   File pointer
-      *
     D gzwrite         PR            10I 0 extproc('gzwrite')
     D  file                               value like(gzFile)                   File pointer
     D  buf                       65535    const options(*varsize)              Buffer
     D  len                          10u 0 value                                Buffer length
      *
-     D gzfwrite         PR           20I 0 extproc('gzfwrite')
-     D  buf                       65535    options(*varsize)                    Buffer
-     D  size                         20u 0 value                                Buffer length
-     D  nitems                       20u 0 value                                Buffer length
-     D  file                               value like(gzFile)                   File pointer
-      *
     D gzputs          PR            10I 0 extproc('gzputs')
     D  file                               value like(gzFile)                   File pointer
     D  s                              *   value options(*string)               String to output
@@ -271,9 +252,6 @@
      /endif
      *
     D gzeof           PR            10i 0 extproc('gzeof')
-     D  file                               value like(gzFile)                   File pointer
-      *
-     D gzdirect        PR            10i 0 extproc('gzdirect')
     D  file                               value like(gzFile)                   File pointer
      *
     D gzclose_r       PR            10i 0 extproc('gzclose_r')
@@ -333,7 +311,7 @@
     D  method                       10I 0 value                                Compression method
     D  windowBits                   10I 0 value                                log2(window size)
     D  memLevel                     10I 0 value                                Mem/cmpress tradeoff
-     D  strategy                     10I 0 value                                Compression strategy
+     D  strategy                     10I 0 value                                Compression stategy
     D  version                        *   value options(*string)               Version string
     D  stream_size                  10i 0 value                                Stream struct. size
      *
@@ -353,14 +331,7 @@
     D deflateParams   PR            10I 0 extproc('deflateParams')             Change level & strat
     D  strm                               like(z_stream)                       Compression stream
     D  level                        10I 0 value                                Compression level
-     D  strategy                     10I 0 value                                Compression strategy
-      *
-     D deflateTune     PR            10I 0 extproc('deflateTune')
-     D  strm                               like(z_stream)                       Compression stream
-     D  good                         10I 0 value
-     D  lazy                         10I 0 value
-     D  nice                         10I 0 value
-     D  chain                        10I 0 value
+     D  strategy                     10I 0 value                                Compression stategy
      *
     D deflateBound    PR            10U 0 extproc('deflateBound')              Change level & strat
     D  strm                               like(z_stream)                       Compression stream
@@ -392,12 +363,6 @@
     D                 PR            10I 0 extproc('inflateGetDictionary')      Get dictionary
     D  strm                               like(z_stream)                       Expansion stream
     D  dictionary                65535    options(*varsize)                    Dictionary bytes
-     D  dictLength                   10U 0                                      Dictionary length
-      *
-     D deflateGetDictionary...
-     D                 PR            10I 0 extproc('deflateGetDictionary')      Get dictionary
-     D  strm                               like(z_stream)                       Expansion stream
-     D  dictionary                65535    options(*varsize)                    Dictionary bytes
     D  dictLength                   10U 0                                      Dictionary length
      *
     D inflateSync     PR            10I 0 extproc('inflateSync')               Sync. expansion
@@ -422,25 +387,6 @@
     D inflateMark     PR            10I 0 extproc('inflateMark')               Get inflate info
     D  strm                               like(z_stream)                       Expansion stream
      *
-     D inflateCodesUsed...
-                       PR            20U 0 extproc('inflateCodesUsed')
-     D  strm                               like(z_stream)                       Expansion stream
-      *
-     D inflateValidate...
-                       PR            20U 0 extproc('inflateValidate')
-     D  strm                               like(z_stream)                       Expansion stream
-     D  check                        10I 0 value
-      *
-     D inflateGetHeader...
-                       PR            10U 0 extproc('inflateGetHeader')
-     D  strm                               like(z_stream)                       Expansion stream
-     D  head                               like(gz_headerp)
-      *
-     D deflateSetHeader...
-                       PR            10U 0 extproc('deflateSetHeader')
-     D  strm                               like(z_stream)                       Expansion stream
-     D  head                               like(gz_headerp)
-      *
     D inflateBackInit...
     D                 PR            10I 0 extproc('inflateBackInit_')
     D  strm                               like(z_stream)                       Expansion stream
@@ -471,33 +417,11 @@
     D  buf                       65535    const options(*varsize)              Bytes to accumulate
     D  len                          10U 0 value                                Buffer length
      *
-     D adler32_combine...
-                       PR            10U 0 extproc('adler32_combine')           New checksum
-     D  adler1                       10U 0 value                                Old checksum
-     D  adler2                       10U 0 value                                Old checksum
-     D  len2                         20U 0 value                                Buffer length
-      *
-     D adler32_z       PR            10U 0 extproc('adler32_z')                 New checksum
-     D  adler                        10U 0 value                                Old checksum
-     D  buf                       65535    const options(*varsize)              Bytes to accumulate
-     D  len                          20U 0 value                                Buffer length
-      *
     D crc32           PR            10U 0 extproc('crc32')                     New checksum
     D  crc                          10U 0 value                                Old checksum
     D  buf                       65535    const options(*varsize)              Bytes to accumulate
     D  len                          10U 0 value                                Buffer length
      *
-     D crc32_combine...
-                       PR            10U 0 extproc('crc32_combine')             New checksum
-     D  crc1                         10U 0 value                                Old checksum
-     D  crc2                         10U 0 value                                Old checksum
-     D  len2                         20U 0 value                                Buffer length
-      *
-     D crc32_z         PR            10U 0 extproc('crc32_z')                   New checksum
-     D  crc                          10U 0 value                                Old checksum
-     D  buf                       65535    const options(*varsize)              Bytes to accumulate
-     D  len                          20U 0 value                                Buffer length
-      *
      **************************************************************************
      *                     Miscellaneous function prototypes
      **************************************************************************
--- a/compat/zlib/compress.c
+++ b/compat/zlib/compress.c
@@ -1,5 +1,5 @@
 /* compress.c -- compress a memory buffer
- * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * Copyright (C) 1995-2005 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h
 */

@@ -28,11 +28,16 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
 {
    z_stream stream;
    int err;
-    const uInt max = (uInt)-1;
-    uLong left;

-    left = *destLen;
-    *destLen = 0;
+    stream.next_in = (z_const Bytef *)source;
+    stream.avail_in = (uInt)sourceLen;
+#ifdef MAXSEG_64K
+    /* Check for source > 64K on 16-bit machine: */
+    if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
+#endif
+    stream.next_out = dest;
+    stream.avail_out = (uInt)*destLen;
+    if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;

    stream.zalloc = (alloc_func)0;
    stream.zfree = (free_func)0;
@@ -41,26 +46,15 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
    err = deflateInit(&stream, level);
    if (err != Z_OK) return err;

-    stream.next_out = dest;
-    stream.avail_out = 0;
-    stream.next_in = (z_const Bytef *)source;
-    stream.avail_in = 0;
-
-    do {
-        if (stream.avail_out == 0) {
-            stream.avail_out = left > (uLong)max ? max : (uInt)left;
-            left -= stream.avail_out;
-        }
-        if (stream.avail_in == 0) {
-            stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen;
-            sourceLen -= stream.avail_in;
-        }
-        err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH);
-    } while (err == Z_OK);
-
+    err = deflate(&stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        deflateEnd(&stream);
+        return err == Z_OK ? Z_BUF_ERROR : err;
+    }
    *destLen = stream.total_out;
-    deflateEnd(&stream);
-    return err == Z_STREAM_END ? Z_OK : err;
+
+    err = deflateEnd(&stream);
+    return err;
 }

 /* ===========================================================================
--- a/compat/zlib/configure
+++ b/compat/zlib/configure
@@ -18,18 +18,6 @@ echo -------------------- >> configure.log
 echo $0 $* >> configure.log
 date >> configure.log

-# get source directory
-SRCDIR=`dirname $0`
-if test $SRCDIR = "."; then
-    ZINC=""
-    ZINCOUT="-I."
-    SRCDIR=""
-else
-    ZINC='-include zconf.h'
-    ZINCOUT='-I. -I$(SRCDIR)'
-    SRCDIR="$SRCDIR/"
-fi
-
 # set command prefix for cross-compilation
 if [ -n "${CHOST}" ]; then
    uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
@@ -40,10 +28,10 @@ fi
 STATICLIB=libz.a

 # extract zlib version numbers from zlib.h
-VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h`
-VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < ${SRCDIR}zlib.h`
-VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
-VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
+VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
+VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h`
+VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
+VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`

 # establish commands for library building
 if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
@@ -85,8 +73,6 @@ zprefix=0
 zconst=0
 build64=0
 gcc=0
-warn=0
-debug=0
 old_cc="$CC"
 old_cflags="$CFLAGS"
 OBJC='$(OBJZ) $(OBJG)'
@@ -135,8 +121,6 @@ case "$1" in
    --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
    --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
    -c* | --const) zconst=1; shift ;;
-    -w* | --warn) warn=1; shift ;;
-    -d* | --debug) debug=1; shift ;;
    *)
      echo "unknown option: $1" | tee -a configure.log
      echo "$0 --help for help" | tee -a configure.log
@@ -175,42 +159,34 @@ case "$cc" in
 esac
 case `$cc -v 2>&1` in
  *gcc*) gcc=1 ;;
-  *clang*) gcc=1 ;;
 esac

 show $cc -c $test.c
 if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
  echo ... using gcc >> configure.log
  CC="$cc"
-  CFLAGS="${CFLAGS--O3}"
+  CFLAGS="${CFLAGS--O3} ${ARCHS}"
  SFLAGS="${CFLAGS--O3} -fPIC"
-  if test "$ARCHS"; then
-    CFLAGS="${CFLAGS} ${ARCHS}"
-    LDFLAGS="${LDFLAGS} ${ARCHS}"
-  fi
+  LDFLAGS="${LDFLAGS} ${ARCHS}"
  if test $build64 -eq 1; then
    CFLAGS="${CFLAGS} -m64"
    SFLAGS="${SFLAGS} -m64"
  fi
-  if test "$warn" -eq 1; then
+  if test "${ZLIBGCCWARN}" = "YES"; then
    if test "$zconst" -eq 1; then
      CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
    else
      CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
    fi
  fi
-  if test $debug -eq 1; then
-    CFLAGS="${CFLAGS} -DZLIB_DEBUG"
-    SFLAGS="${SFLAGS} -DZLIB_DEBUG"
-  fi
  if test -z "$uname"; then
    uname=`(uname -s || echo unknown) 2>/dev/null`
  fi
  case "$uname" in
  Linux* | linux* | GNU | GNU/* | solaris*)
-        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;;
  *BSD | *bsd* | DragonFly)
-        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"}
        LDCONFIG="ldconfig -m" ;;
  CYGWIN* | Cygwin* | cygwin* | OS/2*)
        EXE='.exe' ;;
@@ -311,9 +287,6 @@ else
                 esac
             fi
         fi
-         if test -n "$ZINC"; then
-             ZINC='-I- -I. -I$(SRCDIR)'
-         fi
         ;;
  SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
             CFLAGS=${CFLAGS-"-O2"}
@@ -364,16 +337,16 @@ if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
  }
  echo - using any output from compiler to indicate an error >> configure.log
 else
-  try()
-  {
-    show $*
-    ( $* ) >> configure.log 2>&1
-    ret=$?
-    if test $ret -ne 0; then
-      echo "(exit code "$ret")" >> configure.log
-    fi
-    return $ret
-  }
+try()
+{
+  show $*
+  ( $* ) >> configure.log 2>&1
+  ret=$?
+  if test $ret -ne 0; then
+    echo "(exit code "$ret")" >> configure.log
+  fi
+  return $ret
+}
 fi

 tryboth()
@@ -449,65 +422,6 @@ esac

 echo >> configure.log

-# check for size_t
-cat > $test.c <<EOF
-#include <stdio.h>
-#include <stdlib.h>
-size_t dummy = 0;
-EOF
-if try $CC -c $CFLAGS $test.c; then
-  echo "Checking for size_t... Yes." | tee -a configure.log
-  need_sizet=0
-else
-  echo "Checking for size_t... No." | tee -a configure.log
-  need_sizet=1
-fi
-
-echo >> configure.log
-
-# find the size_t integer type, if needed
-if test $need_sizet -eq 1; then
-  cat > $test.c <<EOF
-long long dummy = 0;
-EOF
-  if try $CC -c $CFLAGS $test.c; then
-    echo "Checking for long long... Yes." | tee -a configure.log
-    cat > $test.c <<EOF
-#include <stdio.h>
-int main(void) {
-    if (sizeof(void *) <= sizeof(int)) puts("int");
-    else if (sizeof(void *) <= sizeof(long)) puts("long");
-    else puts("z_longlong");
-    return 0;
-}
-EOF
-  else
-    echo "Checking for long long... No." | tee -a configure.log
-    cat > $test.c <<EOF
-#include <stdio.h>
-int main(void) {
-    if (sizeof(void *) <= sizeof(int)) puts("int");
-    else puts("long");
-    return 0;
-}
-EOF
-  fi
-  if try $CC $CFLAGS -o $test $test.c; then
-    sizet=`./$test`
-    echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log
-  else
-    echo "Failed to find a pointer-size integer type." | tee -a configure.log
-    leave 1
-  fi
-fi
-
-if test $need_sizet -eq 1; then
-  CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
-  SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
-fi
-
-echo >> configure.log
-
 # check for large file support, and if none, check for fseeko()
 cat > $test.c <<EOF
 #include <sys/types.h>
@@ -556,7 +470,7 @@ else
 fi

 # copy clean zconf.h for subsequent edits
-cp -p ${SRCDIR}zconf.h.in zconf.h
+cp -p zconf.h.in zconf.h

 echo >> configure.log

@@ -850,7 +764,6 @@ echo STATICLIB = $STATICLIB >> configure.log
 echo TEST = $TEST >> configure.log
 echo VER = $VER >> configure.log
 echo Z_U4 = $Z_U4 >> configure.log
-echo SRCDIR = $SRCDIR >> configure.log
 echo exec_prefix = $exec_prefix >> configure.log
 echo includedir = $includedir >> configure.log
 echo libdir = $libdir >> configure.log
@@ -860,7 +773,7 @@ echo sharedlibdir = $sharedlibdir >> configure.log
 echo uname = $uname >> configure.log

 # udpate Makefile with the configure results
-sed < ${SRCDIR}Makefile.in "
+sed < Makefile.in "
 /^CC *=/s#=.*#=$CC#
 /^CFLAGS *=/s#=.*#=$CFLAGS#
 /^SFLAGS *=/s#=.*#=$SFLAGS#
@@ -877,9 +790,6 @@ sed < ${SRCDIR}Makefile.in "
 /^LDCONFIG *=/s#=.*#=$LDCONFIG#
 /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
 /^EXE *=/s#=.*#=$EXE#
-/^SRCDIR *=/s#=.*#=$SRCDIR#
-/^ZINC *=/s#=.*#=$ZINC#
-/^ZINCOUT *=/s#=.*#=$ZINCOUT#
 /^prefix *=/s#=.*#=$prefix#
 /^exec_prefix *=/s#=.*#=$exec_prefix#
 /^libdir *=/s#=.*#=$libdir#
@@ -893,7 +803,7 @@ sed < ${SRCDIR}Makefile.in "
 " > Makefile

 # create zlib.pc with the configure results
-sed < ${SRCDIR}zlib.pc.in "
+sed < zlib.pc.in "
 /^CC *=/s#=.*#=$CC#
 /^CFLAGS *=/s#=.*#=$CFLAGS#
 /^CPP *=/s#=.*#=$CPP#
--- a/compat/zlib/contrib/README.contrib
+++ b/compat/zlib/contrib/README.contrib
@@ -38,7 +38,7 @@ inflate86/  by Chris Anderson <christop@charm.net>
 iostream/   by Kevin Ruland <kevin@rodin.wustl.edu>
        A C++ I/O streams interface to the zlib gz* functions

-iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
+iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
        Another C++ I/O streams interface

 iostream3/  by Ludwig Schwardt <schwardt@sun.ac.za>
@@ -58,7 +58,7 @@ masmx86/    by Gilles Vollant <info@winimage.com>
 minizip/    by Gilles Vollant <info@winimage.com>
        Mini zip and unzip based on zlib
        Includes Zip64 support by Mathias Svensson <mathias@result42.com>
-        See http://www.winimage.com/zLibDll/minizip.html
+        See http://www.winimage.com/zLibDll/unzip.html

 pascal/     by Bob Dellaca <bobdl@xtra.co.nz> et al.
        Support for Pascal
--- a/compat/zlib/contrib/ada/buffer_demo.adb
+++ b/compat/zlib/contrib/ada/buffer_demo.adb
--- a/compat/zlib/contrib/ada/mtest.adb
+++ b/compat/zlib/contrib/ada/mtest.adb
--- a/compat/zlib/contrib/ada/read.adb
+++ b/compat/zlib/contrib/ada/read.adb
--- a/compat/zlib/contrib/ada/readme.txt
+++ b/compat/zlib/contrib/ada/readme.txt
--- a/compat/zlib/contrib/ada/test.adb
+++ b/compat/zlib/contrib/ada/test.adb
--- a/compat/zlib/contrib/ada/zlib-streams.adb
+++ b/compat/zlib/contrib/ada/zlib-streams.adb
--- a/compat/zlib/contrib/ada/zlib-streams.ads
+++ b/compat/zlib/contrib/ada/zlib-streams.ads
@@ -31,7 +31,7 @@ package ZLib.Streams is
      Mode   : in     Flush_Mode := Sync_Flush);
   --  Flush the written data to the back stream,
   --  all data placed to the compressor is flushing to the Back stream.
-   --  Should not be used until necessary, because it is decreasing
+   --  Should not be used untill necessary, becouse it is decreasing
   --  compression.

   function Read_Total_In (Stream : in Stream_Type) return Count;
@@ -97,13 +97,13 @@ private
      Rest_Last  : Stream_Element_Offset;
      --  Buffer for Read operation.
      --  We need to have this buffer in the record
-      --  because not all read data from back stream
+      --  becouse not all read data from back stream
      --  could be processed during the read operation.

      Buffer_Size : Stream_Element_Offset;
      --  Buffer size for write operation.
      --  We do not need to have this buffer
-      --  in the record because all data could be
+      --  in the record becouse all data could be
      --  processed in the write operation.

      Back       : Stream_Access;
--- a/compat/zlib/contrib/ada/zlib-thin.adb
+++ b/compat/zlib/contrib/ada/zlib-thin.adb
--- a/compat/zlib/contrib/ada/zlib-thin.ads
+++ b/compat/zlib/contrib/ada/zlib-thin.ads
@@ -436,7 +436,7 @@ private

   pragma Import (C, inflateBackInit, "inflateBackInit_");

-   --  I stopped binding the inflateBack routines, because realize that
+   --  I stopped binding the inflateBack routines, becouse realize that
   --  it does not support zlib and gzip headers for now, and have no
   --  symmetric deflateBack routines.
   --  ZLib-Ada is symmetric regarding deflate/inflate data transformation
--- a/compat/zlib/contrib/ada/zlib.adb
+++ b/compat/zlib/contrib/ada/zlib.adb
--- a/compat/zlib/contrib/ada/zlib.ads
+++ b/compat/zlib/contrib/ada/zlib.ads
--- a/compat/zlib/contrib/ada/zlib.gpr
+++ b/compat/zlib/contrib/ada/zlib.gpr
--- a/compat/zlib/contrib/amd64/amd64-match.S
+++ b/compat/zlib/contrib/amd64/amd64-match.S
--- a/compat/zlib/contrib/asm686/README.686
+++ b/compat/zlib/contrib/asm686/README.686
--- a/compat/zlib/contrib/asm686/match.S
+++ b/compat/zlib/contrib/asm686/match.S
--- a/compat/zlib/contrib/blast/Makefile
+++ b/compat/zlib/contrib/blast/Makefile
--- a/compat/zlib/contrib/blast/README
+++ b/compat/zlib/contrib/blast/README
--- a/compat/zlib/contrib/blast/blast.c
+++ b/compat/zlib/contrib/blast/blast.c
@@ -1,7 +1,7 @@
 /* blast.c
- * Copyright (C) 2003, 2012, 2013 Mark Adler
+ * Copyright (C) 2003, 2012 Mark Adler
 * For conditions of distribution and use, see copyright notice in blast.h
- * version 1.3, 24 Aug 2013
+ * version 1.2, 24 Oct 2012
 *
 * blast.c decompresses data compressed by the PKWare Compression Library.
 * This function provides functionality similar to the explode() function of
@@ -24,12 +24,8 @@
 * 1.1  16 Feb 2003     - Fixed distance check for > 4 GB uncompressed data
 * 1.2  24 Oct 2012     - Add note about using binary mode in stdio
 *                      - Fix comparisons of differently signed integers
- * 1.3  24 Aug 2013     - Return unused input from blast()
- *                      - Fix test code to correctly report unused input
- *                      - Enable the provision of initial input to blast()
 */

-#include <stddef.h>             /* for NULL */
 #include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
 #include "blast.h"              /* prototype for blast() */

@@ -260,7 +256,7 @@ local int construct(struct huffman *h, const unsigned char *rep, int n)
 *   next, 0 for literals, 1 for length/distance.
 *
 * - If literals are uncoded, then the next eight bits are the literal, in the
- *   normal bit order in the stream, i.e. no bit-reversal is needed. Similarly,
+ *   normal bit order in th stream, i.e. no bit-reversal is needed. Similarly,
 *   no bit reversal is needed for either the length extra bits or the distance
 *   extra bits.
 *
@@ -380,8 +376,7 @@ local int decomp(struct state *s)
 }

 /* See comments in blast.h */
-int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
-          unsigned *left, unsigned char **in)
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow)
 {
    struct state s;             /* input/output state */
    int err;                    /* return value */
@@ -389,12 +384,7 @@ int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
    /* initialize input state */
    s.infun = infun;
    s.inhow = inhow;
-    if (left != NULL && *left) {
-        s.left = *left;
-        s.in = *in;
-    }
-    else
-        s.left = 0;
+    s.left = 0;
    s.bitbuf = 0;
    s.bitcnt = 0;

@@ -410,12 +400,6 @@ int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
    else
        err = decomp(&s);               /* decompress */

-    /* return unused input */
-    if (left != NULL)
-        *left = s.left;
-    if (in != NULL)
-        *in = s.left ? s.in : NULL;
-
    /* write any leftover output and update the error code if needed */
    if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0)
        err = 1;
@@ -445,20 +429,16 @@ local int outf(void *how, unsigned char *buf, unsigned len)
 /* Decompress a PKWare Compression Library stream from stdin to stdout */
 int main(void)
 {
-    int ret;
-    unsigned left;
+    int ret, n;

    /* decompress to stdout */
-    left = 0;
-    ret = blast(inf, stdin, outf, stdout, &left, NULL);
-    if (ret != 0)
-        fprintf(stderr, "blast error: %d\n", ret);
+    ret = blast(inf, stdin, outf, stdout);
+    if (ret != 0) fprintf(stderr, "blast error: %d\n", ret);

-    /* count any leftover bytes */
-    while (getchar() != EOF)
-        left++;
-    if (left)
-        fprintf(stderr, "blast warning: %u unused bytes of input\n", left);
+    /* see if there are any leftover bytes */
+    n = 0;
+    while (getchar() != EOF) n++;
+    if (n) fprintf(stderr, "blast warning: %d unused bytes of input\n", n);

    /* return blast() error code */
    return ret;
--- a/compat/zlib/contrib/blast/blast.h
+++ b/compat/zlib/contrib/blast/blast.h
@@ -1,6 +1,6 @@
 /* blast.h -- interface for blast.c
-  Copyright (C) 2003, 2012, 2013 Mark Adler
-  version 1.3, 24 Aug 2013
+  Copyright (C) 2003, 2012 Mark Adler
+  version 1.2, 24 Oct 2012

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the author be held liable for any damages
@@ -42,8 +42,7 @@ typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len);
 */


-int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
-          unsigned *left, unsigned char **in);
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow);
 /* Decompress input to output using the provided infun() and outfun() calls.
 * On success, the return value of blast() is zero.  If there is an error in
 * the source data, i.e. it is not in the proper format, then a negative value
@@ -56,19 +55,12 @@ int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
 * an input error.  (blast() only asks for input if it needs it.)  inhow is for
 * use by the application to pass an input descriptor to infun(), if desired.
 *
- * If left and in are not NULL and *left is not zero when blast() is called,
- * then the *left bytes are *in are consumed for input before infun() is used.
- *
 * The output function is invoked: err = outfun(how, buf, len), where the bytes
 * to be written are buf[0..len-1].  If err is not zero, then blast() returns
 * with an output error.  outfun() is always called with len <= 4096.  outhow
 * is for use by the application to pass an output descriptor to outfun(), if
 * desired.
 *
- * If there is any unused input, *left is set to the number of bytes that were
- * read and *in points to them.  Otherwise *left is set to zero and *in is set
- * to NULL.  If left or in are NULL, then they are not set.
- *
 * The return codes are:
 *
 *   2:  ran out of input before completing decompression
--- a/compat/zlib/contrib/blast/test.pk
+++ b/compat/zlib/contrib/blast/test.pk
--- a/compat/zlib/contrib/blast/test.txt
+++ b/compat/zlib/contrib/blast/test.txt
--- a/compat/zlib/contrib/delphi/ZLib.pas
+++ b/compat/zlib/contrib/delphi/ZLib.pas
@@ -152,7 +152,7 @@ procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
  const OutBuf: Pointer; BufSize: Integer);

 const
-  zlib_version = '1.2.11';
+  zlib_version = '1.2.8';

 type
  EZlibError = class(Exception);
--- a/compat/zlib/contrib/delphi/ZLibConst.pas
+++ b/compat/zlib/contrib/delphi/ZLibConst.pas
--- a/compat/zlib/contrib/delphi/readme.txt
+++ b/compat/zlib/contrib/delphi/readme.txt
--- a/compat/zlib/contrib/delphi/zlibd32.mak
+++ b/compat/zlib/contrib/delphi/zlibd32.mak
--- a/compat/zlib/contrib/dotzlib/DotZLib.build
+++ b/compat/zlib/contrib/dotzlib/DotZLib.build
@@ -1,33 +1,33 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<project name="DotZLib" default="build" basedir="./DotZLib">
-	<description>A .Net wrapper library around ZLib1.dll</description>
-
-	<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
-	<property name="build.root" value="bin" />
-
-	<property name="debug" value="true" />
-	<property name="nunit" value="true" />
-
-	<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
-	<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
-
-	<target name="clean" description="Remove all generated files">
-		<delete dir="${build.root}" failonerror="false" />
-	</target>
-
-	<target name="build" description="compiles the source code">
-
-		<mkdir dir="${build.folder}" />
-		<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
-			<references basedir="${nunit.location}">
-				<includes if="${nunit}" name="nunit.framework.dll" />
-			</references>
-			<sources>
-				<includes name="*.cs" />
-				<excludes name="UnitTests.cs" unless="${nunit}" />
-			</sources>
-			<arg value="/d:nunit" if="${nunit}" />
-		</csc>
-	</target>
-
+<?xml version="1.0" encoding="utf-8" ?>
+<project name="DotZLib" default="build" basedir="./DotZLib">
+	<description>A .Net wrapper library around ZLib1.dll</description>
+
+	<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
+	<property name="build.root" value="bin" />
+
+	<property name="debug" value="true" />
+	<property name="nunit" value="true" />
+
+	<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
+	<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
+
+	<target name="clean" description="Remove all generated files">
+		<delete dir="${build.root}" failonerror="false" />
+	</target>
+
+	<target name="build" description="compiles the source code">
+
+		<mkdir dir="${build.folder}" />
+		<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
+			<references basedir="${nunit.location}">
+				<includes if="${nunit}" name="nunit.framework.dll" />
+			</references>
+			<sources>
+				<includes name="*.cs" />
+				<excludes name="UnitTests.cs" unless="${nunit}" />
+			</sources>
+			<arg value="/d:nunit" if="${nunit}" />
+		</csc>
+	</target>
+
 </project>
--- a/compat/zlib/contrib/dotzlib/DotZLib.chm
+++ b/compat/zlib/contrib/dotzlib/DotZLib.chm
--- a/compat/zlib/contrib/dotzlib/DotZLib.sln
+++ b/compat/zlib/contrib/dotzlib/DotZLib.sln
@@ -1,21 +1,21 @@
-Microsoft Visual Studio Solution File, Format Version 8.00
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
-	ProjectSection(ProjectDependencies) = postProject
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfiguration) = preSolution
-		Debug = Debug
-		Release = Release
-	EndGlobalSection
-	GlobalSection(ProjectConfiguration) = postSolution
-		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
-		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
-		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
-		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-	EndGlobalSection
-	GlobalSection(ExtensibilityAddIns) = postSolution
-	EndGlobalSection
-EndGlobal
+Microsoft Visual Studio Solution File, Format Version 8.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfiguration) = preSolution
+		Debug = Debug
+		Release = Release
+	EndGlobalSection
+	GlobalSection(ProjectConfiguration) = postSolution
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+	EndGlobalSection
+	GlobalSection(ExtensibilityAddIns) = postSolution
+	EndGlobalSection
+EndGlobal
--- a/compat/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs
@@ -1,58 +1,58 @@
-using System.Reflection;
-using System.Runtime.CompilerServices;
-
-//
-// General Information about an assembly is controlled through the following
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-//
-[assembly: AssemblyTitle("DotZLib")]
-[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("Henrik Ravn")]
-[assembly: AssemblyProduct("")]
-[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-
-//
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version
-//      Build Number
-//      Revision
-//
-// You can specify all the values or you can default the Revision and Build Numbers
-// by using the '*' as shown below:
-
-[assembly: AssemblyVersion("1.0.*")]
-
-//
-// In order to sign your assembly you must specify a key to use. Refer to the
-// Microsoft .NET Framework documentation for more information on assembly signing.
-//
-// Use the attributes below to control which key is used for signing.
-//
-// Notes:
-//   (*) If no key is specified, the assembly is not signed.
-//   (*) KeyName refers to a key that has been installed in the Crypto Service
-//       Provider (CSP) on your machine. KeyFile refers to a file which contains
-//       a key.
-//   (*) If the KeyFile and the KeyName values are both specified, the
-//       following processing occurs:
-//       (1) If the KeyName can be found in the CSP, that key is used.
-//       (2) If the KeyName does not exist and the KeyFile does exist, the key
-//           in the KeyFile is installed into the CSP and used.
-//   (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
-//       When specifying the KeyFile, the location of the KeyFile should be
-//       relative to the project output directory which is
-//       %Project Directory%\obj\<configuration>. For example, if your KeyFile is
-//       located in the project directory, you would specify the AssemblyKeyFile
-//       attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
-//   (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
-//       documentation for more information on this.
-//
-[assembly: AssemblyDelaySign(false)]
-[assembly: AssemblyKeyFile("")]
-[assembly: AssemblyKeyName("")]
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+//
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+//
+[assembly: AssemblyTitle("DotZLib")]
+[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Henrik Ravn")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+//
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers
+// by using the '*' as shown below:
+
+[assembly: AssemblyVersion("1.0.*")]
+
+//
+// In order to sign your assembly you must specify a key to use. Refer to the
+// Microsoft .NET Framework documentation for more information on assembly signing.
+//
+// Use the attributes below to control which key is used for signing.
+//
+// Notes:
+//   (*) If no key is specified, the assembly is not signed.
+//   (*) KeyName refers to a key that has been installed in the Crypto Service
+//       Provider (CSP) on your machine. KeyFile refers to a file which contains
+//       a key.
+//   (*) If the KeyFile and the KeyName values are both specified, the
+//       following processing occurs:
+//       (1) If the KeyName can be found in the CSP, that key is used.
+//       (2) If the KeyName does not exist and the KeyFile does exist, the key
+//           in the KeyFile is installed into the CSP and used.
+//   (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
+//       When specifying the KeyFile, the location of the KeyFile should be
+//       relative to the project output directory which is
+//       %Project Directory%\obj\<configuration>. For example, if your KeyFile is
+//       located in the project directory, you would specify the AssemblyKeyFile
+//       attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
+//   (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
+//       documentation for more information on this.
+//
+[assembly: AssemblyDelaySign(false)]
+[assembly: AssemblyKeyFile("")]
+[assembly: AssemblyKeyName("")]
--- a/compat/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs
@@ -1,202 +1,202 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Runtime.InteropServices;
-using System.Text;
-
-
-namespace DotZLib
-{
-    #region ChecksumGeneratorBase
-    /// <summary>
-    /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
-    /// </summary>
-    /// <example></example>
-    public abstract class ChecksumGeneratorBase : ChecksumGenerator
-    {
-        /// <summary>
-        /// The value of the current checksum
-        /// </summary>
-        protected uint _current;
-
-        /// <summary>
-        /// Initializes a new instance of the checksum generator base - the current checksum is
-        /// set to zero
-        /// </summary>
-        public ChecksumGeneratorBase()
-        {
-            _current = 0;
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the checksum generator basewith a specified value
-        /// </summary>
-        /// <param name="initialValue">The value to set the current checksum to</param>
-        public ChecksumGeneratorBase(uint initialValue)
-        {
-            _current = initialValue;
-        }
-
-        /// <summary>
-        /// Resets the current checksum to zero
-        /// </summary>
-        public void Reset() { _current = 0; }
-
-        /// <summary>
-        /// Gets the current checksum value
-        /// </summary>
-        public uint Value { get { return _current; } }
-
-        /// <summary>
-        /// Updates the current checksum with part of an array of bytes
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        /// <param name="offset">Where in <c>data</c> to start updating</param>
-        /// <param name="count">The number of bytes from <c>data</c> to use</param>
-        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
-        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
-        /// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
-        /// This is therefore the only method a derived class has to implement</remarks>
-        public abstract void Update(byte[] data, int offset, int count);
-
-        /// <summary>
-        /// Updates the current checksum with an array of bytes.
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        public void Update(byte[] data)
-        {
-            Update(data, 0, data.Length);
-        }
-
-        /// <summary>
-        /// Updates the current checksum with the data from a string
-        /// </summary>
-        /// <param name="data">The string to update the checksum with</param>
-        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
-        public void Update(string data)
-        {
-			Update(Encoding.UTF8.GetBytes(data));
-        }
-
-        /// <summary>
-        /// Updates the current checksum with the data from a string, using a specific encoding
-        /// </summary>
-        /// <param name="data">The string to update the checksum with</param>
-        /// <param name="encoding">The encoding to use</param>
-        public void Update(string data, Encoding encoding)
-        {
-            Update(encoding.GetBytes(data));
-        }
-
-    }
-    #endregion
-
-    #region CRC32
-    /// <summary>
-    /// Implements a CRC32 checksum generator
-    /// </summary>
-    public sealed class CRC32Checksum : ChecksumGeneratorBase
-    {
-        #region DLL imports
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern uint crc32(uint crc, int data, uint length);
-
-        #endregion
-
-        /// <summary>
-        /// Initializes a new instance of the CRC32 checksum generator
-        /// </summary>
-        public CRC32Checksum() : base() {}
-
-        /// <summary>
-        /// Initializes a new instance of the CRC32 checksum generator with a specified value
-        /// </summary>
-        /// <param name="initialValue">The value to set the current checksum to</param>
-        public CRC32Checksum(uint initialValue) : base(initialValue) {}
-
-        /// <summary>
-        /// Updates the current checksum with part of an array of bytes
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        /// <param name="offset">Where in <c>data</c> to start updating</param>
-        /// <param name="count">The number of bytes from <c>data</c> to use</param>
-        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
-        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
-        public override void Update(byte[] data, int offset, int count)
-        {
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > data.Length) throw new ArgumentException();
-            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
-            try
-            {
-                _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
-            }
-            finally
-            {
-                hData.Free();
-            }
-        }
-
-    }
-    #endregion
-
-    #region Adler
-    /// <summary>
-    /// Implements a checksum generator that computes the Adler checksum on data
-    /// </summary>
-    public sealed class AdlerChecksum : ChecksumGeneratorBase
-    {
-        #region DLL imports
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern uint adler32(uint adler, int data, uint length);
-
-        #endregion
-
-        /// <summary>
-        /// Initializes a new instance of the Adler checksum generator
-        /// </summary>
-        public AdlerChecksum() : base() {}
-
-        /// <summary>
-        /// Initializes a new instance of the Adler checksum generator with a specified value
-        /// </summary>
-        /// <param name="initialValue">The value to set the current checksum to</param>
-        public AdlerChecksum(uint initialValue) : base(initialValue) {}
-
-        /// <summary>
-        /// Updates the current checksum with part of an array of bytes
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        /// <param name="offset">Where in <c>data</c> to start updating</param>
-        /// <param name="count">The number of bytes from <c>data</c> to use</param>
-        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
-        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
-        public override void Update(byte[] data, int offset, int count)
-        {
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > data.Length) throw new ArgumentException();
-            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
-            try
-            {
-                _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
-            }
-            finally
-            {
-                hData.Free();
-            }
-        }
-
-    }
-    #endregion
-
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+    #region ChecksumGeneratorBase
+    /// <summary>
+    /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
+    /// </summary>
+    /// <example></example>
+    public abstract class ChecksumGeneratorBase : ChecksumGenerator
+    {
+        /// <summary>
+        /// The value of the current checksum
+        /// </summary>
+        protected uint _current;
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator base - the current checksum is
+        /// set to zero
+        /// </summary>
+        public ChecksumGeneratorBase()
+        {
+            _current = 0;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator basewith a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public ChecksumGeneratorBase(uint initialValue)
+        {
+            _current = initialValue;
+        }
+
+        /// <summary>
+        /// Resets the current checksum to zero
+        /// </summary>
+        public void Reset() { _current = 0; }
+
+        /// <summary>
+        /// Gets the current checksum value
+        /// </summary>
+        public uint Value { get { return _current; } }
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        /// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
+        /// This is therefore the only method a derived class has to implement</remarks>
+        public abstract void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes.
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        public void Update(byte[] data)
+        {
+            Update(data, 0, data.Length);
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        public void Update(string data)
+        {
+			Update(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        public void Update(string data, Encoding encoding)
+        {
+            Update(encoding.GetBytes(data));
+        }
+
+    }
+    #endregion
+
+    #region CRC32
+    /// <summary>
+    /// Implements a CRC32 checksum generator
+    /// </summary>
+    public sealed class CRC32Checksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint crc32(uint crc, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator
+        /// </summary>
+        public CRC32Checksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public CRC32Checksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
+    #region Adler
+    /// <summary>
+    /// Implements a checksum generator that computes the Adler checksum on data
+    /// </summary>
+    public sealed class AdlerChecksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint adler32(uint adler, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator
+        /// </summary>
+        public AdlerChecksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public AdlerChecksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
 }
--- a/compat/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs
@@ -1,83 +1,83 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Diagnostics;
-
-namespace DotZLib
-{
-
-	/// <summary>
-	/// This class implements a circular buffer
-	/// </summary>
-	internal class CircularBuffer
-	{
-        #region Private data
-        private int _capacity;
-        private int _head;
-        private int _tail;
-        private int _size;
-        private byte[] _buffer;
-        #endregion
-
-        public CircularBuffer(int capacity)
-        {
-            Debug.Assert( capacity > 0 );
-            _buffer = new byte[capacity];
-            _capacity = capacity;
-            _head = 0;
-            _tail = 0;
-            _size = 0;
-        }
-
-        public int Size { get { return _size; } }
-
-        public int Put(byte[] source, int offset, int count)
-        {
-            Debug.Assert( count > 0 );
-            int trueCount = Math.Min(count, _capacity - Size);
-            for (int i = 0; i < trueCount; ++i)
-                _buffer[(_tail+i) % _capacity] = source[offset+i];
-            _tail += trueCount;
-            _tail %= _capacity;
-            _size += trueCount;
-            return trueCount;
-        }
-
-        public bool Put(byte b)
-        {
-            if (Size == _capacity) // no room
-                return false;
-            _buffer[_tail++] = b;
-            _tail %= _capacity;
-            ++_size;
-            return true;
-        }
-
-        public int Get(byte[] destination, int offset, int count)
-        {
-            int trueCount = Math.Min(count,Size);
-            for (int i = 0; i < trueCount; ++i)
-                destination[offset + i] = _buffer[(_head+i) % _capacity];
-            _head += trueCount;
-            _head %= _capacity;
-            _size -= trueCount;
-            return trueCount;
-        }
-
-        public int Get()
-        {
-            if (Size == 0)
-                return -1;
-
-            int result = (int)_buffer[_head++ % _capacity];
-            --_size;
-            return result;
-        }
-
-    }
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+
+namespace DotZLib
+{
+
+	/// <summary>
+	/// This class implements a circular buffer
+	/// </summary>
+	internal class CircularBuffer
+	{
+        #region Private data
+        private int _capacity;
+        private int _head;
+        private int _tail;
+        private int _size;
+        private byte[] _buffer;
+        #endregion
+
+        public CircularBuffer(int capacity)
+        {
+            Debug.Assert( capacity > 0 );
+            _buffer = new byte[capacity];
+            _capacity = capacity;
+            _head = 0;
+            _tail = 0;
+            _size = 0;
+        }
+
+        public int Size { get { return _size; } }
+
+        public int Put(byte[] source, int offset, int count)
+        {
+            Debug.Assert( count > 0 );
+            int trueCount = Math.Min(count, _capacity - Size);
+            for (int i = 0; i < trueCount; ++i)
+                _buffer[(_tail+i) % _capacity] = source[offset+i];
+            _tail += trueCount;
+            _tail %= _capacity;
+            _size += trueCount;
+            return trueCount;
+        }
+
+        public bool Put(byte b)
+        {
+            if (Size == _capacity) // no room
+                return false;
+            _buffer[_tail++] = b;
+            _tail %= _capacity;
+            ++_size;
+            return true;
+        }
+
+        public int Get(byte[] destination, int offset, int count)
+        {
+            int trueCount = Math.Min(count,Size);
+            for (int i = 0; i < trueCount; ++i)
+                destination[offset + i] = _buffer[(_head+i) % _capacity];
+            _head += trueCount;
+            _head %= _capacity;
+            _size -= trueCount;
+            return trueCount;
+        }
+
+        public int Get()
+        {
+            if (Size == 0)
+                return -1;
+
+            int result = (int)_buffer[_head++ % _capacity];
+            --_size;
+            return result;
+        }
+
+    }
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/CodecBase.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/CodecBase.cs
@@ -1,198 +1,198 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Runtime.InteropServices;
-
-namespace DotZLib
-{
-	/// <summary>
-	/// Implements the common functionality needed for all <see cref="Codec"/>s
-	/// </summary>
-	public abstract class CodecBase : Codec, IDisposable
-	{
-
-        #region Data members
-
-        /// <summary>
-        /// Instance of the internal zlib buffer structure that is
-        /// passed to all functions in the zlib dll
-        /// </summary>
-        internal ZStream _ztream = new ZStream();
-
-        /// <summary>
-        /// True if the object instance has been disposed, false otherwise
-        /// </summary>
-        protected bool _isDisposed = false;
-
-        /// <summary>
-        /// The size of the internal buffers
-        /// </summary>
-        protected const int kBufferSize = 16384;
-
-        private byte[] _outBuffer = new byte[kBufferSize];
-        private byte[] _inBuffer = new byte[kBufferSize];
-
-        private GCHandle _hInput;
-        private GCHandle _hOutput;
-
-        private uint _checksum = 0;
-
-        #endregion
-
-        /// <summary>
-        /// Initializes a new instance of the <c>CodeBase</c> class.
-        /// </summary>
-		public CodecBase()
-		{
-            try
-            {
-                _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
-                _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
-            }
-            catch (Exception)
-            {
-                CleanUp(false);
-                throw;
-            }
-        }
-
-
-        #region Codec Members
-
-        /// <summary>
-        /// Occurs when more processed data are available.
-        /// </summary>
-        public event DataAvailableHandler DataAvailable;
-
-        /// <summary>
-        /// Fires the <see cref="DataAvailable"/> event
-        /// </summary>
-        protected void OnDataAvailable()
-        {
-            if (_ztream.total_out > 0)
-            {
-                if (DataAvailable != null)
-                    DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
-                resetOutput();
-            }
-        }
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        public void Add(byte[] data)
-        {
-            Add(data,0,data.Length);
-        }
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
-        /// <param name="count">The number of bytes to add</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        /// <remarks>This must be implemented by a derived class</remarks>
-        public abstract void Add(byte[] data, int offset, int count);
-
-        /// <summary>
-        /// Finishes up any pending data that needs to be processed and handled.
-        /// </summary>
-        /// <remarks>This must be implemented by a derived class</remarks>
-        public abstract void Finish();
-
-        /// <summary>
-        /// Gets the checksum of the data that has been added so far
-        /// </summary>
-        public uint Checksum { get { return _checksum; } }
-
-        #endregion
-
-        #region Destructor & IDisposable stuff
-
-        /// <summary>
-        /// Destroys this instance
-        /// </summary>
-        ~CodecBase()
-        {
-            CleanUp(false);
-        }
-
-        /// <summary>
-        /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
-        /// </summary>
-        public void Dispose()
-        {
-            CleanUp(true);
-        }
-
-        /// <summary>
-        /// Performs any codec specific cleanup
-        /// </summary>
-        /// <remarks>This must be implemented by a derived class</remarks>
-        protected abstract void CleanUp();
-
-        // performs the release of the handles and calls the dereived CleanUp()
-        private void CleanUp(bool isDisposing)
-        {
-            if (!_isDisposed)
-            {
-                CleanUp();
-                if (_hInput.IsAllocated)
-                    _hInput.Free();
-                if (_hOutput.IsAllocated)
-                    _hOutput.Free();
-
-                _isDisposed = true;
-            }
-        }
-
-
-        #endregion
-
-        #region Helper methods
-
-        /// <summary>
-        /// Copies a number of bytes to the internal codec buffer - ready for proccesing
-        /// </summary>
-        /// <param name="data">The byte array that contains the data to copy</param>
-        /// <param name="startIndex">The index of the first byte to copy</param>
-        /// <param name="count">The number of bytes to copy from <c>data</c></param>
-        protected void copyInput(byte[] data, int startIndex, int count)
-        {
-            Array.Copy(data, startIndex, _inBuffer,0, count);
-            _ztream.next_in = _hInput.AddrOfPinnedObject();
-            _ztream.total_in = 0;
-            _ztream.avail_in = (uint)count;
-
-        }
-
-        /// <summary>
-        /// Resets the internal output buffers to a known state - ready for processing
-        /// </summary>
-        protected void resetOutput()
-        {
-            _ztream.total_out = 0;
-            _ztream.avail_out = kBufferSize;
-            _ztream.next_out = _hOutput.AddrOfPinnedObject();
-        }
-
-        /// <summary>
-        /// Updates the running checksum property
-        /// </summary>
-        /// <param name="newSum">The new checksum value</param>
-        protected void setChecksum(uint newSum)
-        {
-            _checksum = newSum;
-        }
-        #endregion
-
-    }
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements the common functionality needed for all <see cref="Codec"/>s
+	/// </summary>
+	public abstract class CodecBase : Codec, IDisposable
+	{
+
+        #region Data members
+
+        /// <summary>
+        /// Instance of the internal zlib buffer structure that is
+        /// passed to all functions in the zlib dll
+        /// </summary>
+        internal ZStream _ztream = new ZStream();
+
+        /// <summary>
+        /// True if the object instance has been disposed, false otherwise
+        /// </summary>
+        protected bool _isDisposed = false;
+
+        /// <summary>
+        /// The size of the internal buffers
+        /// </summary>
+        protected const int kBufferSize = 16384;
+
+        private byte[] _outBuffer = new byte[kBufferSize];
+        private byte[] _inBuffer = new byte[kBufferSize];
+
+        private GCHandle _hInput;
+        private GCHandle _hOutput;
+
+        private uint _checksum = 0;
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the <c>CodeBase</c> class.
+        /// </summary>
+		public CodecBase()
+		{
+            try
+            {
+                _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
+                _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
+            }
+            catch (Exception)
+            {
+                CleanUp(false);
+                throw;
+            }
+        }
+
+
+        #region Codec Members
+
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        public event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Fires the <see cref="DataAvailable"/> event
+        /// </summary>
+        protected void OnDataAvailable()
+        {
+            if (_ztream.total_out > 0)
+            {
+                if (DataAvailable != null)
+                    DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
+                resetOutput();
+            }
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public void Add(byte[] data)
+        {
+            Add(data,0,data.Length);
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        public uint Checksum { get { return _checksum; } }
+
+        #endregion
+
+        #region Destructor & IDisposable stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~CodecBase()
+        {
+            CleanUp(false);
+        }
+
+        /// <summary>
+        /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
+        /// </summary>
+        public void Dispose()
+        {
+            CleanUp(true);
+        }
+
+        /// <summary>
+        /// Performs any codec specific cleanup
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        protected abstract void CleanUp();
+
+        // performs the release of the handles and calls the dereived CleanUp()
+        private void CleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                CleanUp();
+                if (_hInput.IsAllocated)
+                    _hInput.Free();
+                if (_hOutput.IsAllocated)
+                    _hOutput.Free();
+
+                _isDisposed = true;
+            }
+        }
+
+
+        #endregion
+
+        #region Helper methods
+
+        /// <summary>
+        /// Copies a number of bytes to the internal codec buffer - ready for proccesing
+        /// </summary>
+        /// <param name="data">The byte array that contains the data to copy</param>
+        /// <param name="startIndex">The index of the first byte to copy</param>
+        /// <param name="count">The number of bytes to copy from <c>data</c></param>
+        protected void copyInput(byte[] data, int startIndex, int count)
+        {
+            Array.Copy(data, startIndex, _inBuffer,0, count);
+            _ztream.next_in = _hInput.AddrOfPinnedObject();
+            _ztream.total_in = 0;
+            _ztream.avail_in = (uint)count;
+
+        }
+
+        /// <summary>
+        /// Resets the internal output buffers to a known state - ready for processing
+        /// </summary>
+        protected void resetOutput()
+        {
+            _ztream.total_out = 0;
+            _ztream.avail_out = kBufferSize;
+            _ztream.next_out = _hOutput.AddrOfPinnedObject();
+        }
+
+        /// <summary>
+        /// Updates the running checksum property
+        /// </summary>
+        /// <param name="newSum">The new checksum value</param>
+        protected void setChecksum(uint newSum)
+        {
+            _checksum = newSum;
+        }
+        #endregion
+
+    }
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/Deflater.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/Deflater.cs
@@ -1,106 +1,106 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace DotZLib
-{
-
-    /// <summary>
-    /// Implements a data compressor, using the deflate algorithm in the ZLib dll
-    /// </summary>
-	public sealed class Deflater : CodecBase
-	{
-        #region Dll imports
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
-        private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int deflate(ref ZStream sz, int flush);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int deflateReset(ref ZStream sz);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int deflateEnd(ref ZStream sz);
-        #endregion
-
-        /// <summary>
-        /// Constructs an new instance of the <c>Deflater</c>
-        /// </summary>
-        /// <param name="level">The compression level to use for this <c>Deflater</c></param>
-		public Deflater(CompressLevel level) : base()
-		{
-            int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
-            if (retval != 0)
-                throw new ZLibException(retval, "Could not initialize deflater");
-
-            resetOutput();
-		}
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
-        /// <param name="count">The number of bytes to add</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        public override void Add(byte[] data, int offset, int count)
-        {
-            if (data == null) throw new ArgumentNullException();
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > data.Length) throw new ArgumentException();
-
-            int total = count;
-            int inputIndex = offset;
-            int err = 0;
-
-            while (err >= 0 && inputIndex < total)
-            {
-                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
-                while (err >= 0 && _ztream.avail_in > 0)
-                {
-                    err = deflate(ref _ztream, (int)FlushTypes.None);
-                    if (err == 0)
-                        while (_ztream.avail_out == 0)
-                        {
-                            OnDataAvailable();
-                            err = deflate(ref _ztream, (int)FlushTypes.None);
-                        }
-                    inputIndex += (int)_ztream.total_in;
-                }
-            }
-            setChecksum( _ztream.adler );
-        }
-
-
-        /// <summary>
-        /// Finishes up any pending data that needs to be processed and handled.
-        /// </summary>
-        public override void Finish()
-        {
-            int err;
-            do
-            {
-                err = deflate(ref _ztream, (int)FlushTypes.Finish);
-                OnDataAvailable();
-            }
-            while (err == 0);
-            setChecksum( _ztream.adler );
-            deflateReset(ref _ztream);
-            resetOutput();
-        }
-
-        /// <summary>
-        /// Closes the internal zlib deflate stream
-        /// </summary>
-        protected override void CleanUp() { deflateEnd(ref _ztream); }
-
-    }
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data compressor, using the deflate algorithm in the ZLib dll
+    /// </summary>
+	public sealed class Deflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Deflater</c>
+        /// </summary>
+        /// <param name="level">The compression level to use for this <c>Deflater</c></param>
+		public Deflater(CompressLevel level) : base()
+		{
+            int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize deflater");
+
+            resetOutput();
+		}
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                while (err >= 0 && _ztream.avail_in > 0)
+                {
+                    err = deflate(ref _ztream, (int)FlushTypes.None);
+                    if (err == 0)
+                        while (_ztream.avail_out == 0)
+                        {
+                            OnDataAvailable();
+                            err = deflate(ref _ztream, (int)FlushTypes.None);
+                        }
+                    inputIndex += (int)_ztream.total_in;
+                }
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = deflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            deflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib deflate stream
+        /// </summary>
+        protected override void CleanUp() { deflateEnd(ref _ztream); }
+
+    }
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs
@@ -1,288 +1,288 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.IO;
-using System.Runtime.InteropServices;
-using System.Text;
-
-
-namespace DotZLib
-{
-
-    #region Internal types
-
-    /// <summary>
-    /// Defines constants for the various flush types used with zlib
-    /// </summary>
-    internal enum FlushTypes
-    {
-        None,  Partial,  Sync,  Full,  Finish,  Block
-    }
-
-    #region ZStream structure
-    // internal mapping of the zlib zstream structure for marshalling
-    [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
-    internal struct ZStream
-    {
-        public IntPtr next_in;
-        public uint avail_in;
-        public uint total_in;
-
-        public IntPtr next_out;
-        public uint avail_out;
-        public uint total_out;
-
-        [MarshalAs(UnmanagedType.LPStr)]
-        string msg;
-        uint state;
-
-        uint zalloc;
-        uint zfree;
-        uint opaque;
-
-        int data_type;
-        public uint adler;
-        uint reserved;
-    }
-
-    #endregion
-
-    #endregion
-
-    #region Public enums
-    /// <summary>
-    /// Defines constants for the available compression levels in zlib
-    /// </summary>
-    public enum CompressLevel : int
-    {
-        /// <summary>
-        /// The default compression level with a reasonable compromise between compression and speed
-        /// </summary>
-        Default = -1,
-        /// <summary>
-        /// No compression at all. The data are passed straight through.
-        /// </summary>
-        None = 0,
-        /// <summary>
-        /// The maximum compression rate available.
-        /// </summary>
-        Best = 9,
-        /// <summary>
-        /// The fastest available compression level.
-        /// </summary>
-        Fastest = 1
-    }
-    #endregion
-
-    #region Exception classes
-    /// <summary>
-    /// The exception that is thrown when an error occurs on the zlib dll
-    /// </summary>
-    public class ZLibException : ApplicationException
-    {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
-        /// error message and error code
-        /// </summary>
-        /// <param name="errorCode">The zlib error code that caused the exception</param>
-        /// <param name="msg">A message that (hopefully) describes the error</param>
-        public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
-        {
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
-        /// error code
-        /// </summary>
-        /// <param name="errorCode">The zlib error code that caused the exception</param>
-        public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
-        {
-        }
-    }
-    #endregion
-
-    #region Interfaces
-
-    /// <summary>
-    /// Declares methods and properties that enables a running checksum to be calculated
-    /// </summary>
-    public interface ChecksumGenerator
-    {
-        /// <summary>
-        /// Gets the current value of the checksum
-        /// </summary>
-        uint Value { get; }
-
-        /// <summary>
-        /// Clears the current checksum to 0
-        /// </summary>
-        void Reset();
-
-        /// <summary>
-        /// Updates the current checksum with an array of bytes
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        void Update(byte[] data);
-
-        /// <summary>
-        /// Updates the current checksum with part of an array of bytes
-        /// </summary>
-        /// <param name="data">The data to update the checksum with</param>
-        /// <param name="offset">Where in <c>data</c> to start updating</param>
-        /// <param name="count">The number of bytes from <c>data</c> to use</param>
-        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
-        /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
-        void Update(byte[] data, int offset, int count);
-
-        /// <summary>
-        /// Updates the current checksum with the data from a string
-        /// </summary>
-        /// <param name="data">The string to update the checksum with</param>
-        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
-        void Update(string data);
-
-        /// <summary>
-        /// Updates the current checksum with the data from a string, using a specific encoding
-        /// </summary>
-        /// <param name="data">The string to update the checksum with</param>
-        /// <param name="encoding">The encoding to use</param>
-        void Update(string data, Encoding encoding);
-    }
-
-
-    /// <summary>
-    /// Represents the method that will be called from a codec when new data
-    /// are available.
-    /// </summary>
-    /// <paramref name="data">The byte array containing the processed data</paramref>
-    /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
-    /// <paramref name="count">The number of processed bytes available</paramref>
-    /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
-    /// You cannot assume that startIndex will be zero.
-    /// </remarks>
-    public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
-
-    /// <summary>
-    /// Declares methods and events for implementing compressors/decompressors
-    /// </summary>
-    public interface Codec
-    {
-        /// <summary>
-        /// Occurs when more processed data are available.
-        /// </summary>
-        event DataAvailableHandler DataAvailable;
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        void Add(byte[] data);
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
-        /// <param name="count">The number of bytes to add</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        void Add(byte[] data, int offset, int count);
-
-        /// <summary>
-        /// Finishes up any pending data that needs to be processed and handled.
-        /// </summary>
-        void Finish();
-
-        /// <summary>
-        /// Gets the checksum of the data that has been added so far
-        /// </summary>
-        uint Checksum { get; }
-
-
-    }
-
-    #endregion
-
-    #region Classes
-    /// <summary>
-    /// Encapsulates general information about the ZLib library
-    /// </summary>
-    public class Info
-    {
-        #region DLL imports
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern uint zlibCompileFlags();
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern string zlibVersion();
-        #endregion
-
-        #region Private stuff
-        private uint _flags;
-
-        // helper function that unpacks a bitsize mask
-        private static int bitSize(uint bits)
-        {
-            switch (bits)
-            {
-                case 0: return 16;
-                case 1: return 32;
-                case 2: return 64;
-            }
-            return -1;
-        }
-        #endregion
-
-        /// <summary>
-        /// Constructs an instance of the <c>Info</c> class.
-        /// </summary>
-        public Info()
-        {
-            _flags = zlibCompileFlags();
-        }
-
-        /// <summary>
-        /// True if the library is compiled with debug info
-        /// </summary>
-        public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
-
-        /// <summary>
-        /// True if the library is compiled with assembly optimizations
-        /// </summary>
-        public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
-
-        /// <summary>
-        /// Gets the size of the unsigned int that was compiled into Zlib
-        /// </summary>
-        public int SizeOfUInt { get { return bitSize(_flags & 3); } }
-
-        /// <summary>
-        /// Gets the size of the unsigned long that was compiled into Zlib
-        /// </summary>
-        public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
-
-        /// <summary>
-        /// Gets the size of the pointers that were compiled into Zlib
-        /// </summary>
-        public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
-
-        /// <summary>
-        /// Gets the size of the z_off_t type that was compiled into Zlib
-        /// </summary>
-        public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
-
-        /// <summary>
-        /// Gets the version of ZLib as a string, e.g. "1.2.1"
-        /// </summary>
-        public static string Version { get { return zlibVersion(); } }
-    }
-
-    #endregion
-
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+
+    #region Internal types
+
+    /// <summary>
+    /// Defines constants for the various flush types used with zlib
+    /// </summary>
+    internal enum FlushTypes
+    {
+        None,  Partial,  Sync,  Full,  Finish,  Block
+    }
+
+    #region ZStream structure
+    // internal mapping of the zlib zstream structure for marshalling
+    [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
+    internal struct ZStream
+    {
+        public IntPtr next_in;
+        public uint avail_in;
+        public uint total_in;
+
+        public IntPtr next_out;
+        public uint avail_out;
+        public uint total_out;
+
+        [MarshalAs(UnmanagedType.LPStr)]
+        string msg;
+        uint state;
+
+        uint zalloc;
+        uint zfree;
+        uint opaque;
+
+        int data_type;
+        public uint adler;
+        uint reserved;
+    }
+
+    #endregion
+
+    #endregion
+
+    #region Public enums
+    /// <summary>
+    /// Defines constants for the available compression levels in zlib
+    /// </summary>
+    public enum CompressLevel : int
+    {
+        /// <summary>
+        /// The default compression level with a reasonable compromise between compression and speed
+        /// </summary>
+        Default = -1,
+        /// <summary>
+        /// No compression at all. The data are passed straight through.
+        /// </summary>
+        None = 0,
+        /// <summary>
+        /// The maximum compression rate available.
+        /// </summary>
+        Best = 9,
+        /// <summary>
+        /// The fastest available compression level.
+        /// </summary>
+        Fastest = 1
+    }
+    #endregion
+
+    #region Exception classes
+    /// <summary>
+    /// The exception that is thrown when an error occurs on the zlib dll
+    /// </summary>
+    public class ZLibException : ApplicationException
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error message and error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        /// <param name="msg">A message that (hopefully) describes the error</param>
+        public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
+        {
+        }
+    }
+    #endregion
+
+    #region Interfaces
+
+    /// <summary>
+    /// Declares methods and properties that enables a running checksum to be calculated
+    /// </summary>
+    public interface ChecksumGenerator
+    {
+        /// <summary>
+        /// Gets the current value of the checksum
+        /// </summary>
+        uint Value { get; }
+
+        /// <summary>
+        /// Clears the current checksum to 0
+        /// </summary>
+        void Reset();
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        void Update(byte[] data);
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        void Update(string data);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        void Update(string data, Encoding encoding);
+    }
+
+
+    /// <summary>
+    /// Represents the method that will be called from a codec when new data
+    /// are available.
+    /// </summary>
+    /// <paramref name="data">The byte array containing the processed data</paramref>
+    /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
+    /// <paramref name="count">The number of processed bytes available</paramref>
+    /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
+    /// You cannot assume that startIndex will be zero.
+    /// </remarks>
+    public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
+
+    /// <summary>
+    /// Declares methods and events for implementing compressors/decompressors
+    /// </summary>
+    public interface Codec
+    {
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data);
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        uint Checksum { get; }
+
+
+    }
+
+    #endregion
+
+    #region Classes
+    /// <summary>
+    /// Encapsulates general information about the ZLib library
+    /// </summary>
+    public class Info
+    {
+        #region DLL imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint zlibCompileFlags();
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern string zlibVersion();
+        #endregion
+
+        #region Private stuff
+        private uint _flags;
+
+        // helper function that unpacks a bitsize mask
+        private static int bitSize(uint bits)
+        {
+            switch (bits)
+            {
+                case 0: return 16;
+                case 1: return 32;
+                case 2: return 64;
+            }
+            return -1;
+        }
+        #endregion
+
+        /// <summary>
+        /// Constructs an instance of the <c>Info</c> class.
+        /// </summary>
+        public Info()
+        {
+            _flags = zlibCompileFlags();
+        }
+
+        /// <summary>
+        /// True if the library is compiled with debug info
+        /// </summary>
+        public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
+
+        /// <summary>
+        /// True if the library is compiled with assembly optimizations
+        /// </summary>
+        public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned int that was compiled into Zlib
+        /// </summary>
+        public int SizeOfUInt { get { return bitSize(_flags & 3); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned long that was compiled into Zlib
+        /// </summary>
+        public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the pointers that were compiled into Zlib
+        /// </summary>
+        public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the z_off_t type that was compiled into Zlib
+        /// </summary>
+        public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
+
+        /// <summary>
+        /// Gets the version of ZLib as a string, e.g. "1.2.1"
+        /// </summary>
+        public static string Version { get { return zlibVersion(); } }
+    }
+
+    #endregion
+
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj
+++ b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.csproj
@@ -1,141 +1,141 @@
-<VisualStudioProject>
-    <CSHARP
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-        ProductVersion = "7.10.3077"
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-                AssemblyKeyContainerName = ""
-                AssemblyName = "DotZLib"
-                AssemblyOriginatorKeyFile = ""
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-                OutputType = "Library"
-                PreBuildEvent = ""
-                PostBuildEvent = ""
-                RootNamespace = "DotZLib"
-                RunPostBuildEvent = "OnBuildSuccess"
-                StartupObject = ""
-            >
-                <Config
-                    Name = "Debug"
-                    AllowUnsafeBlocks = "false"
-                    BaseAddress = "285212672"
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-                    IncrementalBuild = "false"
-                    NoStdLib = "false"
-                    NoWarn = "1591"
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-                    RemoveIntegerChecks = "false"
-                    TreatWarningsAsErrors = "false"
-                    WarningLevel = "4"
-                />
-                <Config
-                    Name = "Release"
-                    AllowUnsafeBlocks = "false"
-                    BaseAddress = "285212672"
-                    CheckForOverflowUnderflow = "false"
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-                    DocumentationFile = "docs\DotZLib.xml"
-                    DebugSymbols = "false"
-                    FileAlignment = "4096"
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-                    NoStdLib = "false"
-                    NoWarn = ""
-                    Optimize = "true"
-                    OutputPath = "bin\Release\"
-                    RegisterForComInterop = "false"
-                    RemoveIntegerChecks = "false"
-                    TreatWarningsAsErrors = "false"
-                    WarningLevel = "4"
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-                    SubType = "Code"
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-                />
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-                    SubType = "Code"
-                    BuildAction = "Compile"
-                />
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-                    SubType = "Code"
-                    BuildAction = "Compile"
-                />
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-                />
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-                <File
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-                    SubType = "Code"
-                    BuildAction = "Compile"
-                />
-            </Include>
-        </Files>
-    </CSHARP>
-</VisualStudioProject>
-
+<VisualStudioProject>
+    <CSHARP
+        ProjectType = "Local"
+        ProductVersion = "7.10.3077"
+        SchemaVersion = "2.0"
+        ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+    >
+        <Build>
+            <Settings
+                ApplicationIcon = ""
+                AssemblyKeyContainerName = ""
+                AssemblyName = "DotZLib"
+                AssemblyOriginatorKeyFile = ""
+                DefaultClientScript = "JScript"
+                DefaultHTMLPageLayout = "Grid"
+                DefaultTargetSchema = "IE50"
+                DelaySign = "false"
+                OutputType = "Library"
+                PreBuildEvent = ""
+                PostBuildEvent = ""
+                RootNamespace = "DotZLib"
+                RunPostBuildEvent = "OnBuildSuccess"
+                StartupObject = ""
+            >
+                <Config
+                    Name = "Debug"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "DEBUG;TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "true"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = "1591"
+                    Optimize = "false"
+                    OutputPath = "bin\Debug\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+                <Config
+                    Name = "Release"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "false"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = ""
+                    Optimize = "true"
+                    OutputPath = "bin\Release\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+            </Settings>
+            <References>
+                <Reference
+                    Name = "System"
+                    AssemblyName = "System"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"
+                />
+                <Reference
+                    Name = "System.Data"
+                    AssemblyName = "System.Data"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"
+                />
+                <Reference
+                    Name = "System.XML"
+                    AssemblyName = "System.Xml"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"
+                />
+                <Reference
+                    Name = "nunit.framework"
+                    AssemblyName = "nunit.framework"
+                    HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"
+                    AssemblyFolderKey = "hklm\dn\nunit.framework"
+                />
+            </References>
+        </Build>
+        <Files>
+            <Include>
+                <File
+                    RelPath = "AssemblyInfo.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "ChecksumImpl.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CircularBuffer.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CodecBase.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Deflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "DotZLib.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "GZipStream.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Inflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "UnitTests.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+            </Include>
+        </Files>
+    </CSHARP>
+</VisualStudioProject>
+
--- a/compat/zlib/contrib/dotzlib/DotZLib/GZipStream.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/GZipStream.cs
@@ -1,301 +1,301 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.IO;
-using System.Runtime.InteropServices;
-
-namespace DotZLib
-{
-	/// <summary>
-	/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
-	/// </summary>
-	public class GZipStream : Stream, IDisposable
-	{
-        #region Dll Imports
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
-        private static extern IntPtr gzopen(string name, string mode);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int gzclose(IntPtr gzFile);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int gzwrite(IntPtr gzFile, int data, int length);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int gzread(IntPtr gzFile, int data, int length);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int gzgetc(IntPtr gzFile);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int gzputc(IntPtr gzFile, int c);
-
-        #endregion
-
-        #region Private data
-        private IntPtr _gzFile;
-        private bool _isDisposed = false;
-        private bool _isWriting;
-        #endregion
-
-        #region Constructors
-        /// <summary>
-        /// Creates a new file as a writeable GZipStream
-        /// </summary>
-        /// <param name="fileName">The name of the compressed file to create</param>
-        /// <param name="level">The compression level to use when adding data</param>
-        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
-		public GZipStream(string fileName, CompressLevel level)
-		{
-            _isWriting = true;
-            _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
-            if (_gzFile == IntPtr.Zero)
-                throw new ZLibException(-1, "Could not open " + fileName);
-		}
-
-        /// <summary>
-        /// Opens an existing file as a readable GZipStream
-        /// </summary>
-        /// <param name="fileName">The name of the file to open</param>
-        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
-        public GZipStream(string fileName)
-        {
-            _isWriting = false;
-            _gzFile = gzopen(fileName, "rb");
-            if (_gzFile == IntPtr.Zero)
-                throw new ZLibException(-1, "Could not open " + fileName);
-
-        }
-        #endregion
-
-        #region Access properties
-        /// <summary>
-        /// Returns true of this stream can be read from, false otherwise
-        /// </summary>
-        public override bool CanRead
-        {
-            get
-            {
-                return !_isWriting;
-            }
-        }
-
-
-        /// <summary>
-        /// Returns false.
-        /// </summary>
-        public override bool CanSeek
-        {
-            get
-            {
-                return false;
-            }
-        }
-
-        /// <summary>
-        /// Returns true if this tsream is writeable, false otherwise
-        /// </summary>
-        public override bool CanWrite
-        {
-            get
-            {
-                return _isWriting;
-            }
-        }
-        #endregion
-
-        #region Destructor & IDispose stuff
-
-        /// <summary>
-        /// Destroys this instance
-        /// </summary>
-        ~GZipStream()
-        {
-            cleanUp(false);
-        }
-
-        /// <summary>
-        /// Closes the external file handle
-        /// </summary>
-        public void Dispose()
-        {
-            cleanUp(true);
-        }
-
-        // Does the actual closing of the file handle.
-        private void cleanUp(bool isDisposing)
-        {
-            if (!_isDisposed)
-            {
-                gzclose(_gzFile);
-                _isDisposed = true;
-            }
-        }
-        #endregion
-
-        #region Basic reading and writing
-        /// <summary>
-        /// Attempts to read a number of bytes from the stream.
-        /// </summary>
-        /// <param name="buffer">The destination data buffer</param>
-        /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
-        /// <param name="count">The number of bytes requested</param>
-        /// <returns>The number of bytes read</returns>
-        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
-        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
-        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
-        /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
-        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
-        public override int Read(byte[] buffer, int offset, int count)
-        {
-            if (!CanRead) throw new NotSupportedException();
-            if (buffer == null) throw new ArgumentNullException();
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > buffer.Length) throw new ArgumentException();
-            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
-
-            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
-            int result;
-            try
-            {
-                result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
-                if (result < 0)
-                    throw new IOException();
-            }
-            finally
-            {
-                h.Free();
-            }
-            return result;
-        }
-
-        /// <summary>
-        /// Attempts to read a single byte from the stream.
-        /// </summary>
-        /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
-        public override int ReadByte()
-        {
-            if (!CanRead) throw new NotSupportedException();
-            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
-            return gzgetc(_gzFile);
-        }
-
-        /// <summary>
-        /// Writes a number of bytes to the stream
-        /// </summary>
-        /// <param name="buffer"></param>
-        /// <param name="offset"></param>
-        /// <param name="count"></param>
-        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
-        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
-        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
-        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
-        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
-        public override void Write(byte[] buffer, int offset, int count)
-        {
-            if (!CanWrite) throw new NotSupportedException();
-            if (buffer == null) throw new ArgumentNullException();
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > buffer.Length) throw new ArgumentException();
-            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
-
-            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
-            try
-            {
-                int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
-                if (result < 0)
-                    throw new IOException();
-            }
-            finally
-            {
-                h.Free();
-            }
-        }
-
-        /// <summary>
-        /// Writes a single byte to the stream
-        /// </summary>
-        /// <param name="value">The byte to add to the stream.</param>
-        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
-        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
-        public override void WriteByte(byte value)
-        {
-            if (!CanWrite) throw new NotSupportedException();
-            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
-
-            int result = gzputc(_gzFile, (int)value);
-            if (result < 0)
-                throw new IOException();
-        }
-        #endregion
-
-        #region Position & length stuff
-        /// <summary>
-        /// Not supported.
-        /// </summary>
-        /// <param name="value"></param>
-        /// <exception cref="NotSupportedException">Always thrown</exception>
-        public override void SetLength(long value)
-        {
-            throw new NotSupportedException();
-        }
-
-        /// <summary>
-        ///  Not suppported.
-        /// </summary>
-        /// <param name="offset"></param>
-        /// <param name="origin"></param>
-        /// <returns></returns>
-        /// <exception cref="NotSupportedException">Always thrown</exception>
-        public override long Seek(long offset, SeekOrigin origin)
-        {
-            throw new NotSupportedException();
-        }
-
-        /// <summary>
-        /// Flushes the <c>GZipStream</c>.
-        /// </summary>
-        /// <remarks>In this implementation, this method does nothing. This is because excessive
-        /// flushing may degrade the achievable compression rates.</remarks>
-        public override void Flush()
-        {
-            // left empty on purpose
-        }
-
-        /// <summary>
-        /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
-        /// </summary>
-        /// <remarks>In this implementation this property is not supported</remarks>
-        /// <exception cref="NotSupportedException">Always thrown</exception>
-        public override long Position
-        {
-            get
-            {
-                throw new NotSupportedException();
-            }
-            set
-            {
-                throw new NotSupportedException();
-            }
-        }
-
-        /// <summary>
-        /// Gets the size of the stream. Not suppported.
-        /// </summary>
-        /// <remarks>In this implementation this property is not supported</remarks>
-        /// <exception cref="NotSupportedException">Always thrown</exception>
-        public override long Length
-        {
-            get
-            {
-                throw new NotSupportedException();
-            }
-        }
-        #endregion
-    }
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
+	/// </summary>
+	public class GZipStream : Stream, IDisposable
+	{
+        #region Dll Imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern IntPtr gzopen(string name, string mode);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzclose(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzwrite(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzread(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzgetc(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzputc(IntPtr gzFile, int c);
+
+        #endregion
+
+        #region Private data
+        private IntPtr _gzFile;
+        private bool _isDisposed = false;
+        private bool _isWriting;
+        #endregion
+
+        #region Constructors
+        /// <summary>
+        /// Creates a new file as a writeable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the compressed file to create</param>
+        /// <param name="level">The compression level to use when adding data</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+		public GZipStream(string fileName, CompressLevel level)
+		{
+            _isWriting = true;
+            _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+		}
+
+        /// <summary>
+        /// Opens an existing file as a readable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the file to open</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+        public GZipStream(string fileName)
+        {
+            _isWriting = false;
+            _gzFile = gzopen(fileName, "rb");
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+
+        }
+        #endregion
+
+        #region Access properties
+        /// <summary>
+        /// Returns true of this stream can be read from, false otherwise
+        /// </summary>
+        public override bool CanRead
+        {
+            get
+            {
+                return !_isWriting;
+            }
+        }
+
+
+        /// <summary>
+        /// Returns false.
+        /// </summary>
+        public override bool CanSeek
+        {
+            get
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Returns true if this tsream is writeable, false otherwise
+        /// </summary>
+        public override bool CanWrite
+        {
+            get
+            {
+                return _isWriting;
+            }
+        }
+        #endregion
+
+        #region Destructor & IDispose stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~GZipStream()
+        {
+            cleanUp(false);
+        }
+
+        /// <summary>
+        /// Closes the external file handle
+        /// </summary>
+        public void Dispose()
+        {
+            cleanUp(true);
+        }
+
+        // Does the actual closing of the file handle.
+        private void cleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                gzclose(_gzFile);
+                _isDisposed = true;
+            }
+        }
+        #endregion
+
+        #region Basic reading and writing
+        /// <summary>
+        /// Attempts to read a number of bytes from the stream.
+        /// </summary>
+        /// <param name="buffer">The destination data buffer</param>
+        /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
+        /// <param name="count">The number of bytes requested</param>
+        /// <returns>The number of bytes read</returns>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            int result;
+            try
+            {
+                result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// Attempts to read a single byte from the stream.
+        /// </summary>
+        /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
+        public override int ReadByte()
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+            return gzgetc(_gzFile);
+        }
+
+        /// <summary>
+        /// Writes a number of bytes to the stream
+        /// </summary>
+        /// <param name="buffer"></param>
+        /// <param name="offset"></param>
+        /// <param name="count"></param>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void Write(byte[] buffer, int offset, int count)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            try
+            {
+                int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+        }
+
+        /// <summary>
+        /// Writes a single byte to the stream
+        /// </summary>
+        /// <param name="value">The byte to add to the stream.</param>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void WriteByte(byte value)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            int result = gzputc(_gzFile, (int)value);
+            if (result < 0)
+                throw new IOException();
+        }
+        #endregion
+
+        #region Position & length stuff
+        /// <summary>
+        /// Not supported.
+        /// </summary>
+        /// <param name="value"></param>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override void SetLength(long value)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        ///  Not suppported.
+        /// </summary>
+        /// <param name="offset"></param>
+        /// <param name="origin"></param>
+        /// <returns></returns>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Seek(long offset, SeekOrigin origin)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        /// Flushes the <c>GZipStream</c>.
+        /// </summary>
+        /// <remarks>In this implementation, this method does nothing. This is because excessive
+        /// flushing may degrade the achievable compression rates.</remarks>
+        public override void Flush()
+        {
+            // left empty on purpose
+        }
+
+        /// <summary>
+        /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Position
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+            set
+            {
+                throw new NotSupportedException();
+            }
+        }
+
+        /// <summary>
+        /// Gets the size of the stream. Not suppported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Length
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+        }
+        #endregion
+    }
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/Inflater.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/Inflater.cs
@@ -1,105 +1,105 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace DotZLib
-{
-
-    /// <summary>
-    /// Implements a data decompressor, using the inflate algorithm in the ZLib dll
-    /// </summary>
-    public class Inflater : CodecBase
-	{
-        #region Dll imports
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
-        private static extern int inflateInit_(ref ZStream sz, string vs, int size);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int inflate(ref ZStream sz, int flush);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int inflateReset(ref ZStream sz);
-
-        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
-        private static extern int inflateEnd(ref ZStream sz);
-        #endregion
-
-        /// <summary>
-        /// Constructs an new instance of the <c>Inflater</c>
-        /// </summary>
-        public Inflater() : base()
-		{
-            int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
-            if (retval != 0)
-                throw new ZLibException(retval, "Could not initialize inflater");
-
-            resetOutput();
-        }
-
-
-        /// <summary>
-        /// Adds more data to the codec to be processed.
-        /// </summary>
-        /// <param name="data">Byte array containing the data to be added to the codec</param>
-        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
-        /// <param name="count">The number of bytes to add</param>
-        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
-        public override void Add(byte[] data, int offset, int count)
-        {
-            if (data == null) throw new ArgumentNullException();
-            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
-            if ((offset+count) > data.Length) throw new ArgumentException();
-
-            int total = count;
-            int inputIndex = offset;
-            int err = 0;
-
-            while (err >= 0 && inputIndex < total)
-            {
-                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
-                err = inflate(ref _ztream, (int)FlushTypes.None);
-                if (err == 0)
-                    while (_ztream.avail_out == 0)
-                    {
-                        OnDataAvailable();
-                        err = inflate(ref _ztream, (int)FlushTypes.None);
-                    }
-
-                inputIndex += (int)_ztream.total_in;
-            }
-            setChecksum( _ztream.adler );
-        }
-
-
-        /// <summary>
-        /// Finishes up any pending data that needs to be processed and handled.
-        /// </summary>
-        public override void Finish()
-        {
-            int err;
-            do
-            {
-                err = inflate(ref _ztream, (int)FlushTypes.Finish);
-                OnDataAvailable();
-            }
-            while (err == 0);
-            setChecksum( _ztream.adler );
-            inflateReset(ref _ztream);
-            resetOutput();
-        }
-
-        /// <summary>
-        /// Closes the internal zlib inflate stream
-        /// </summary>
-        protected override void CleanUp() { inflateEnd(ref _ztream); }
-
-
-	}
-}
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data decompressor, using the inflate algorithm in the ZLib dll
+    /// </summary>
+    public class Inflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int inflateInit_(ref ZStream sz, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Inflater</c>
+        /// </summary>
+        public Inflater() : base()
+		{
+            int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize inflater");
+
+            resetOutput();
+        }
+
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                err = inflate(ref _ztream, (int)FlushTypes.None);
+                if (err == 0)
+                    while (_ztream.avail_out == 0)
+                    {
+                        OnDataAvailable();
+                        err = inflate(ref _ztream, (int)FlushTypes.None);
+                    }
+
+                inputIndex += (int)_ztream.total_in;
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = inflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            inflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib inflate stream
+        /// </summary>
+        protected override void CleanUp() { inflateEnd(ref _ztream); }
+
+
+	}
+}
--- a/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
+++ b/compat/zlib/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -1,274 +1,274 @@
-//
-// © Copyright Henrik Ravn 2004
-//
-// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using System;
-using System.Collections;
-using System.IO;
-
-// uncomment the define below to include unit tests
-//#define nunit
-#if nunit
-using NUnit.Framework;
-
-// Unit tests for the DotZLib class library
-// ----------------------------------------
-//
-// Use this with NUnit 2 from http://www.nunit.org
-//
-
-namespace DotZLibTests
-{
-    using DotZLib;
-
-    // helper methods
-    internal class Utils
-    {
-        public static bool byteArrEqual( byte[] lhs, byte[] rhs )
-        {
-            if (lhs.Length != rhs.Length)
-                return false;
-            for (int i = lhs.Length-1; i >= 0; --i)
-                if (lhs[i] != rhs[i])
-                    return false;
-            return true;
-        }
-
-    }
-
-
-    [TestFixture]
-    public class CircBufferTests
-    {
-        #region Circular buffer tests
-        [Test]
-        public void SinglePutGet()
-        {
-            CircularBuffer buf = new CircularBuffer(10);
-            Assert.AreEqual( 0, buf.Size );
-            Assert.AreEqual( -1, buf.Get() );
-
-            Assert.IsTrue(buf.Put( 1 ));
-            Assert.AreEqual( 1, buf.Size );
-            Assert.AreEqual( 1, buf.Get() );
-            Assert.AreEqual( 0, buf.Size );
-            Assert.AreEqual( -1, buf.Get() );
-        }
-
-        [Test]
-        public void BlockPutGet()
-        {
-            CircularBuffer buf = new CircularBuffer(10);
-            byte[] arr = {1,2,3,4,5,6,7,8,9,10};
-            Assert.AreEqual( 10, buf.Put(arr,0,10) );
-            Assert.AreEqual( 10, buf.Size );
-            Assert.IsFalse( buf.Put(11) );
-            Assert.AreEqual( 1, buf.Get() );
-            Assert.IsTrue( buf.Put(11) );
-
-            byte[] arr2 = (byte[])arr.Clone();
-            Assert.AreEqual( 9, buf.Get(arr2,1,9) );
-            Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
-        }
-
-        #endregion
-    }
-
-    [TestFixture]
-    public class ChecksumTests
-    {
-        #region CRC32 Tests
-        [Test]
-        public void CRC32_Null()
-        {
-            CRC32Checksum crc32 = new CRC32Checksum();
-            Assert.AreEqual( 0, crc32.Value );
-
-            crc32 = new CRC32Checksum(1);
-            Assert.AreEqual( 1, crc32.Value );
-
-            crc32 = new CRC32Checksum(556);
-            Assert.AreEqual( 556, crc32.Value );
-        }
-
-        [Test]
-        public void CRC32_Data()
-        {
-            CRC32Checksum crc32 = new CRC32Checksum();
-            byte[] data = { 1,2,3,4,5,6,7 };
-            crc32.Update(data);
-            Assert.AreEqual( 0x70e46888, crc32.Value  );
-
-            crc32 = new CRC32Checksum();
-            crc32.Update("penguin");
-            Assert.AreEqual( 0x0e5c1a120, crc32.Value );
-
-            crc32 = new CRC32Checksum(1);
-            crc32.Update("penguin");
-            Assert.AreEqual(0x43b6aa94, crc32.Value);
-
-        }
-        #endregion
-
-        #region Adler tests
-
-        [Test]
-        public void Adler_Null()
-        {
-            AdlerChecksum adler = new AdlerChecksum();
-            Assert.AreEqual(0, adler.Value);
-
-            adler = new AdlerChecksum(1);
-            Assert.AreEqual( 1, adler.Value );
-
-            adler = new AdlerChecksum(556);
-            Assert.AreEqual( 556, adler.Value );
-        }
-
-        [Test]
-        public void Adler_Data()
-        {
-            AdlerChecksum adler = new AdlerChecksum(1);
-            byte[] data = { 1,2,3,4,5,6,7 };
-            adler.Update(data);
-            Assert.AreEqual( 0x5b001d, adler.Value  );
-
-            adler = new AdlerChecksum();
-            adler.Update("penguin");
-            Assert.AreEqual(0x0bcf02f6, adler.Value );
-
-            adler = new AdlerChecksum(1);
-            adler.Update("penguin");
-            Assert.AreEqual(0x0bd602f7, adler.Value);
-
-        }
-        #endregion
-    }
-
-    [TestFixture]
-    public class InfoTests
-    {
-        #region Info tests
-        [Test]
-        public void Info_Version()
-        {
-            Info info = new Info();
-            Assert.AreEqual("1.2.11", Info.Version);
-            Assert.AreEqual(32, info.SizeOfUInt);
-            Assert.AreEqual(32, info.SizeOfULong);
-            Assert.AreEqual(32, info.SizeOfPointer);
-            Assert.AreEqual(32, info.SizeOfOffset);
-        }
-        #endregion
-    }
-
-    [TestFixture]
-    public class DeflateInflateTests
-    {
-        #region Deflate tests
-        [Test]
-        public void Deflate_Init()
-        {
-            using (Deflater def = new Deflater(CompressLevel.Default))
-            {
-            }
-        }
-
-        private ArrayList compressedData = new ArrayList();
-        private uint adler1;
-
-        private ArrayList uncompressedData = new ArrayList();
-        private uint adler2;
-
-        public void CDataAvail(byte[] data, int startIndex, int count)
-        {
-            for (int i = 0; i < count; ++i)
-                compressedData.Add(data[i+startIndex]);
-        }
-
-        [Test]
-        public void Deflate_Compress()
-        {
-            compressedData.Clear();
-
-            byte[] testData = new byte[35000];
-            for (int i = 0; i < testData.Length; ++i)
-                testData[i] = 5;
-
-            using (Deflater def = new Deflater((CompressLevel)5))
-            {
-                def.DataAvailable += new DataAvailableHandler(CDataAvail);
-                def.Add(testData);
-                def.Finish();
-                adler1 = def.Checksum;
-            }
-        }
-        #endregion
-
-        #region Inflate tests
-        [Test]
-        public void Inflate_Init()
-        {
-            using (Inflater inf = new Inflater())
-            {
-            }
-        }
-
-        private void DDataAvail(byte[] data, int startIndex, int count)
-        {
-            for (int i = 0; i < count; ++i)
-                uncompressedData.Add(data[i+startIndex]);
-        }
-
-        [Test]
-        public void Inflate_Expand()
-        {
-            uncompressedData.Clear();
-
-            using (Inflater inf = new Inflater())
-            {
-                inf.DataAvailable += new DataAvailableHandler(DDataAvail);
-                inf.Add((byte[])compressedData.ToArray(typeof(byte)));
-                inf.Finish();
-                adler2 = inf.Checksum;
-            }
-            Assert.AreEqual( adler1, adler2 );
-        }
-        #endregion
-    }
-
-    [TestFixture]
-    public class GZipStreamTests
-    {
-        #region GZipStream test
-        [Test]
-        public void GZipStream_WriteRead()
-        {
-            using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
-            {
-                BinaryWriter writer = new BinaryWriter(gzOut);
-                writer.Write("hi there");
-                writer.Write(Math.PI);
-                writer.Write(42);
-            }
-
-            using (GZipStream gzIn = new GZipStream("gzstream.gz"))
-            {
-                BinaryReader reader = new BinaryReader(gzIn);
-                string s = reader.ReadString();
-                Assert.AreEqual("hi there",s);
-                double d = reader.ReadDouble();
-                Assert.AreEqual(Math.PI, d);
-                int i = reader.ReadInt32();
-                Assert.AreEqual(42,i);
-            }
-
-        }
-        #endregion
-	}
-}
-
-#endif
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Collections;
+using System.IO;
+
+// uncomment the define below to include unit tests
+//#define nunit
+#if nunit
+using NUnit.Framework;
+
+// Unit tests for the DotZLib class library
+// ----------------------------------------
+//
+// Use this with NUnit 2 from http://www.nunit.org
+//
+
+namespace DotZLibTests
+{
+    using DotZLib;
+
+    // helper methods
+    internal class Utils
+    {
+        public static bool byteArrEqual( byte[] lhs, byte[] rhs )
+        {
+            if (lhs.Length != rhs.Length)
+                return false;
+            for (int i = lhs.Length-1; i >= 0; --i)
+                if (lhs[i] != rhs[i])
+                    return false;
+            return true;
+        }
+
+    }
+
+
+    [TestFixture]
+    public class CircBufferTests
+    {
+        #region Circular buffer tests
+        [Test]
+        public void SinglePutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+
+            Assert.IsTrue(buf.Put( 1 ));
+            Assert.AreEqual( 1, buf.Size );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+        }
+
+        [Test]
+        public void BlockPutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            byte[] arr = {1,2,3,4,5,6,7,8,9,10};
+            Assert.AreEqual( 10, buf.Put(arr,0,10) );
+            Assert.AreEqual( 10, buf.Size );
+            Assert.IsFalse( buf.Put(11) );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.IsTrue( buf.Put(11) );
+
+            byte[] arr2 = (byte[])arr.Clone();
+            Assert.AreEqual( 9, buf.Get(arr2,1,9) );
+            Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
+        }
+
+        #endregion
+    }
+
+    [TestFixture]
+    public class ChecksumTests
+    {
+        #region CRC32 Tests
+        [Test]
+        public void CRC32_Null()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            Assert.AreEqual( 0, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            Assert.AreEqual( 1, crc32.Value );
+
+            crc32 = new CRC32Checksum(556);
+            Assert.AreEqual( 556, crc32.Value );
+        }
+
+        [Test]
+        public void CRC32_Data()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            byte[] data = { 1,2,3,4,5,6,7 };
+            crc32.Update(data);
+            Assert.AreEqual( 0x70e46888, crc32.Value  );
+
+            crc32 = new CRC32Checksum();
+            crc32.Update("penguin");
+            Assert.AreEqual( 0x0e5c1a120, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            crc32.Update("penguin");
+            Assert.AreEqual(0x43b6aa94, crc32.Value);
+
+        }
+        #endregion
+
+        #region Adler tests
+
+        [Test]
+        public void Adler_Null()
+        {
+            AdlerChecksum adler = new AdlerChecksum();
+            Assert.AreEqual(0, adler.Value);
+
+            adler = new AdlerChecksum(1);
+            Assert.AreEqual( 1, adler.Value );
+
+            adler = new AdlerChecksum(556);
+            Assert.AreEqual( 556, adler.Value );
+        }
+
+        [Test]
+        public void Adler_Data()
+        {
+            AdlerChecksum adler = new AdlerChecksum(1);
+            byte[] data = { 1,2,3,4,5,6,7 };
+            adler.Update(data);
+            Assert.AreEqual( 0x5b001d, adler.Value  );
+
+            adler = new AdlerChecksum();
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bcf02f6, adler.Value );
+
+            adler = new AdlerChecksum(1);
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bd602f7, adler.Value);
+
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class InfoTests
+    {
+        #region Info tests
+        [Test]
+        public void Info_Version()
+        {
+            Info info = new Info();
+            Assert.AreEqual("1.2.8", Info.Version);
+            Assert.AreEqual(32, info.SizeOfUInt);
+            Assert.AreEqual(32, info.SizeOfULong);
+            Assert.AreEqual(32, info.SizeOfPointer);
+            Assert.AreEqual(32, info.SizeOfOffset);
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class DeflateInflateTests
+    {
+        #region Deflate tests
+        [Test]
+        public void Deflate_Init()
+        {
+            using (Deflater def = new Deflater(CompressLevel.Default))
+            {
+            }
+        }
+
+        private ArrayList compressedData = new ArrayList();
+        private uint adler1;
+
+        private ArrayList uncompressedData = new ArrayList();
+        private uint adler2;
+
+        public void CDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                compressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Deflate_Compress()
+        {
+            compressedData.Clear();
+
+            byte[] testData = new byte[35000];
+            for (int i = 0; i < testData.Length; ++i)
+                testData[i] = 5;
+
+            using (Deflater def = new Deflater((CompressLevel)5))
+            {
+                def.DataAvailable += new DataAvailableHandler(CDataAvail);
+                def.Add(testData);
+                def.Finish();
+                adler1 = def.Checksum;
+            }
+        }
+        #endregion
+
+        #region Inflate tests
+        [Test]
+        public void Inflate_Init()
+        {
+            using (Inflater inf = new Inflater())
+            {
+            }
+        }
+
+        private void DDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                uncompressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Inflate_Expand()
+        {
+            uncompressedData.Clear();
+
+            using (Inflater inf = new Inflater())
+            {
+                inf.DataAvailable += new DataAvailableHandler(DDataAvail);
+                inf.Add((byte[])compressedData.ToArray(typeof(byte)));
+                inf.Finish();
+                adler2 = inf.Checksum;
+            }
+            Assert.AreEqual( adler1, adler2 );
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class GZipStreamTests
+    {
+        #region GZipStream test
+        [Test]
+        public void GZipStream_WriteRead()
+        {
+            using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
+            {
+                BinaryWriter writer = new BinaryWriter(gzOut);
+                writer.Write("hi there");
+                writer.Write(Math.PI);
+                writer.Write(42);
+            }
+
+            using (GZipStream gzIn = new GZipStream("gzstream.gz"))
+            {
+                BinaryReader reader = new BinaryReader(gzIn);
+                string s = reader.ReadString();
+                Assert.AreEqual("hi there",s);
+                double d = reader.ReadDouble();
+                Assert.AreEqual(Math.PI, d);
+                int i = reader.ReadInt32();
+                Assert.AreEqual(42,i);
+            }
+
+        }
+        #endregion
+	}
+}
+
+#endif
--- a/compat/zlib/contrib/dotzlib/LICENSE_1_0.txt
+++ b/compat/zlib/contrib/dotzlib/LICENSE_1_0.txt
@@ -1,23 +1,23 @@
-Boost Software License - Version 1.0 - August 17th, 2003
-
-Permission is hereby granted, free of charge, to any person or organization
-obtaining a copy of the software and accompanying documentation covered by
-this license (the "Software") to use, reproduce, display, distribute,
-execute, and transmit the Software, and to prepare derivative works of the
-Software, and to permit third-parties to whom the Software is furnished to
-do so, all subject to the following:
-
-The copyright notices in the Software and this entire statement, including
-the above license grant, this restriction and the following disclaimer,
-must be included in all copies of the Software, in whole or in part, and
-all derivative works of the Software, unless such copies or derivative
-works are solely in the form of machine-executable object code generated by
-a source language processor.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 DEALINGS IN THE SOFTWARE.
--- a/compat/zlib/contrib/dotzlib/readme.txt
+++ b/compat/zlib/contrib/dotzlib/readme.txt
@@ -1,58 +1,58 @@
-This directory contains a .Net wrapper class library for the ZLib1.dll
-
-The wrapper includes support for inflating/deflating memory buffers,
-.Net streaming wrappers for the gz streams part of zlib, and wrappers
-for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
-
-Directory structure:
--------------------
-
-LICENSE_1_0.txt       - License file.
-readme.txt            - This file.
-DotZLib.chm           - Class library documentation
-DotZLib.build         - NAnt build file
-DotZLib.sln           - Microsoft Visual Studio 2003 solution file
-
-DotZLib\*.cs          - Source files for the class library
-
-Unit tests:
-----------
-The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
-To include unit tests in the build, define nunit before building.
-
-
-Build instructions:
-------------------
-
-1. Using Visual Studio.Net 2003:
-   Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
-   will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
-   you are building the release or debug version of the library. Check
-   DotZLib/UnitTests.cs for instructions on how to include unit tests in the
-   build.
-
-2. Using NAnt:
-   Open a command prompt with access to the build environment and run nant
-   in the same directory as the DotZLib.build file.
-   You can define 2 properties on the nant command-line to control the build:
-   debug={true|false} to toggle between release/debug builds (default=true).
-   nunit={true|false} to include or esclude unit tests (default=true).
-   Also the target clean will remove binaries.
-   Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
-   or ./DotZLib/bin/debug, depending on whether you are building the release
-   or debug version of the library.
-
-   Examples:
-     nant -D:debug=false -D:nunit=false
-       will build a release mode version of the library without unit tests.
-     nant
-       will build a debug version of the library with unit tests
-     nant clean
-       will remove all previously built files.
-
-
---------------------------------
-Copyright (c) Henrik Ravn 2004
-
-Use, modification and distribution are subject to the Boost Software License, Version 1.0.
-(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+This directory contains a .Net wrapper class library for the ZLib1.dll
+
+The wrapper includes support for inflating/deflating memory buffers,
+.Net streaming wrappers for the gz streams part of zlib, and wrappers
+for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
+
+Directory structure:
+--------------------
+
+LICENSE_1_0.txt       - License file.
+readme.txt            - This file.
+DotZLib.chm           - Class library documentation
+DotZLib.build         - NAnt build file
+DotZLib.sln           - Microsoft Visual Studio 2003 solution file
+
+DotZLib\*.cs          - Source files for the class library
+
+Unit tests:
+-----------
+The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
+To include unit tests in the build, define nunit before building.
+
+
+Build instructions:
+-------------------
+
+1. Using Visual Studio.Net 2003:
+   Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
+   will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
+   you are building the release or debug version of the library. Check
+   DotZLib/UnitTests.cs for instructions on how to include unit tests in the
+   build.
+
+2. Using NAnt:
+   Open a command prompt with access to the build environment and run nant
+   in the same directory as the DotZLib.build file.
+   You can define 2 properties on the nant command-line to control the build:
+   debug={true|false} to toggle between release/debug builds (default=true).
+   nunit={true|false} to include or esclude unit tests (default=true).
+   Also the target clean will remove binaries.
+   Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
+   or ./DotZLib/bin/debug, depending on whether you are building the release
+   or debug version of the library.
+
+   Examples:
+     nant -D:debug=false -D:nunit=false
+       will build a release mode version of the library without unit tests.
+     nant
+       will build a debug version of the library with unit tests
+     nant clean
+       will remove all previously built files.
+
+
+---------------------------------
+Copyright (c) Henrik Ravn 2004
+
+Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
--- a/compat/zlib/contrib/gcc_gvmat64/gvmat64.S
+++ b/compat/zlib/contrib/gcc_gvmat64/gvmat64.S
--- a/compat/zlib/contrib/infback9/README
+++ b/compat/zlib/contrib/infback9/README
--- a/compat/zlib/contrib/infback9/infback9.c
+++ b/compat/zlib/contrib/infback9/infback9.c
--- a/compat/zlib/contrib/infback9/infback9.h
+++ b/compat/zlib/contrib/infback9/infback9.h
--- a/compat/zlib/contrib/infback9/inffix9.h
+++ b/compat/zlib/contrib/infback9/inffix9.h
--- a/compat/zlib/contrib/infback9/inflate9.h
+++ b/compat/zlib/contrib/infback9/inflate9.h
--- a/compat/zlib/contrib/infback9/inftree9.c
+++ b/compat/zlib/contrib/infback9/inftree9.c
@@ -1,5 +1,5 @@
 /* inftree9.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2017 Mark Adler
+ * Copyright (C) 1995-2013 Mark Adler
 * For conditions of distribution and use, see copyright notice in zlib.h
 */

@@ -9,7 +9,7 @@
 #define MAXBITS 15

 const char inflate9_copyright[] =
-   " inflate9 1.2.11 Copyright 1995-2017 Mark Adler ";
+   " inflate9 1.2.8 Copyright 1995-2013 Mark Adler ";
 /*
  If you use the zlib library in a product, an acknowledgment is welcome
  in the documentation of your product. If for some reason you cannot
@@ -64,7 +64,7 @@ unsigned short FAR *work;
    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
        128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
        130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
-        133, 133, 133, 133, 144, 77, 202};
+        133, 133, 133, 133, 144, 72, 78};
    static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
        65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
--- a/Show More
+++ b/Show More