Import BSDDB 4.7.25 (as of svn r89086)

perl/DB_File/hints/dynixptx.pl

@@ -0,0 +1,3 @@
+# Need to add an extra '-lc' to the end to work around a DYNIX/ptx bug
+
+$self->{LIBS} = ['-lm -lc'];

perl/DB_File/hints/sco.pl

@@ -0,0 +1,2 @@
+# osr5 needs to explicitly link against libc to pull in some static symbols
+$self->{LIBS} = ['-ldb -lc'] if $Config{'osvers'} =~ '3\.2v5\.0\..' ;