Index: libffi/ChangeLog
===================================================================
--- libffi.orig/ChangeLog
+++ libffi/ChangeLog
@@ -59,6 +59,14 @@
 
 	* configure: Regenerate.
 
+2011-11-12  Kimura Wataru  <kimuraw@i.nifty.jp>
+
+	* m4/ax_enable_builddir: Change from string comparison to numeric
+	comparison for wc output.
+	* configure.ac: Enable FFI_MMAP_EXEC_WRIT for darwin11 aka Mac OS
+	X 10.7.
+	* configure: Rebuilt.
+
 2011-11-10  Richard Henderson  <rth@redhat.com>
 
 	* configure.ac (GCC_AS_CFI_PSEUDO_OP): Use it instead of inline check.
Index: libffi/configure
===================================================================
--- libffi.orig/configure
+++ libffi/configure
@@ -621,6 +621,9 @@ FFI_DEBUG_FALSE
 FFI_DEBUG_TRUE
 TARGETDIR
 TARGET
+FFI_EXEC_TRAMPOLINE_TABLE
+FFI_EXEC_TRAMPOLINE_TABLE_FALSE
+FFI_EXEC_TRAMPOLINE_TABLE_TRUE
 sys_symbol_underscore
 HAVE_LONG_DOUBLE
 ALLOCA
@@ -2643,6 +2646,8 @@ target_alias=${target_alias-$host_alias}
 
 . ${srcdir}/configure.host
 
+AX_ENABLE_BUILDDIR
+
 am__api_version='1.11'
 
 # Find a good install program.  We prefer a C program (faster),
@@ -11834,6 +11839,12 @@ CC="$lt_save_CC"
 
 
 
+AX_CC_MAXOPT
+AX_CFLAGS_WARN_ALL
+if test "x$GCC" = "xyes"; then
+  CFLAGS="$CFLAGS -fexceptions"
+fi
+
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
 $as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
@@ -12064,7 +12075,7 @@ case "$host" in
 	TARGET=FRV; TARGETDIR=frv
 	;;
 
-  hppa*-*-linux* | parisc*-*-linux*)
+  hppa*-*-linux* | parisc*-*-linux* | hppa*-*-openbsd*)
 	TARGET=PA_LINUX; TARGETDIR=pa
 	;;
   hppa*64-*-hpux*)
@@ -12114,7 +12125,7 @@ case "$host" in
   mips-sgi-irix5.* | mips-sgi-irix6.* | mips*-*-rtems*)
 	TARGET=MIPS; TARGETDIR=mips
 	;;
-  mips*-*-linux*)
+  mips*-*-linux* | mips*-*-openbsd*)
 	# Support 128-bit long double for NewABI.
 	HAVE_LONG_DOUBLE='defined(__mips64)'
 	TARGET=MIPS; TARGETDIR=mips
@@ -12136,7 +12147,7 @@ case "$host" in
   powerpc-*-aix* | rs6000-*-aix*)
 	TARGET=POWERPC_AIX; TARGETDIR=powerpc
 	;;
-  powerpc-*-freebsd*)
+  powerpc-*-freebsd* | powerpc-*-openbsd*)
 	TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
 	;;
   powerpc64-*-freebsd*)
@@ -13296,13 +13307,30 @@ $as_echo "#define SYMBOL_UNDERSCORE 1" >
     fi
 fi
 
+
+FFI_EXEC_TRAMPOLINE_TABLE=0
 case "$target" in
-     *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
+     *arm*-apple-darwin*)
+       FFI_EXEC_TRAMPOLINE_TABLE=1
+
+$as_echo "#define FFI_EXEC_TRAMPOLINE_TABLE 1" >>confdefs.h
+
+     ;;
+     *-apple-darwin1[10]* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
 
 $as_echo "#define FFI_MMAP_EXEC_WRIT 1" >>confdefs.h
 
      ;;
 esac
+ if test x$FFI_EXEC_TRAMPOLINE_TABLE = x1; then
+  FFI_EXEC_TRAMPOLINE_TABLE_TRUE=
+  FFI_EXEC_TRAMPOLINE_TABLE_FALSE='#'
+else
+  FFI_EXEC_TRAMPOLINE_TABLE_TRUE='#'
+  FFI_EXEC_TRAMPOLINE_TABLE_FALSE=
+fi
+
+
 
 if test x$TARGET = xX86_64; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler supports unwind section type" >&5
@@ -13730,6 +13758,10 @@ if test -z "${PA64_HPUX_TRUE}" && test -
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 
+if test -z "${FFI_EXEC_TRAMPOLINE_TABLE_TRUE}" && test -z "${FFI_EXEC_TRAMPOLINE_TABLE_FALSE}"; then
+  as_fn_error $? "conditional \"FFI_EXEC_TRAMPOLINE_TABLE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${FFI_DEBUG_TRUE}" && test -z "${FFI_DEBUG_FALSE}"; then
   as_fn_error $? "conditional \"FFI_DEBUG\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
Index: libffi/configure.ac
===================================================================
--- libffi.orig/configure.ac
+++ libffi/configure.ac
@@ -348,7 +348,7 @@ case "$target" in
                  [Cannot use PROT_EXEC on this target, so, we revert to
                    alternative means])
      ;;
-     *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
+     *-apple-darwin1[[10]]* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
        AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
                  [Cannot use malloc on this target, so, we revert to
                    alternative means])