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diff --git a/Build/source/libs/zziplib/m4/ax_prefix_config_h.m4 b/Build/source/libs/zziplib/m4/ax_prefix_config_h.m4
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+dnl @synopsis AX_PREFIX_CONFIG_H [(OUTPUT-HEADER [,PREFIX [,ORIG-HEADER]])]
+dnl
+dnl This is a new variant from ac_prefix_config_ this one will use a
+dnl lowercase-prefix if the config-define was starting with a
+dnl lowercase-char, e.g. "#define const", "#define restrict", or
+dnl "#define off_t", (and this one can live in another directory, e.g.
+dnl testpkg/config.h therefore I decided to move the output-header to
+dnl be the first arg)
+dnl
+dnl takes the usual config.h generated header file; looks for each of
+dnl the generated "#define SOMEDEF" lines, and prefixes the defined
+dnl name (ie. makes it "#define PREFIX_SOMEDEF". The result is written
+dnl to the output config.header file. The PREFIX is converted to
+dnl uppercase for the conversions.
+dnl
+dnl Defaults:
+dnl
+dnl OUTPUT-HEADER = $PACKAGE-config.h
+dnl PREFIX = $PACKAGE
+dnl ORIG-HEADER, from AM_CONFIG_HEADER(config.h)
+dnl
+dnl Your configure.ac script should contain both macros in this order,
+dnl and unlike the earlier variations of this prefix-macro it is okay
+dnl to place the AX_PREFIX_CONFIG_H call before the AC_OUTPUT
+dnl invokation.
+dnl
+dnl Example:
+dnl
+dnl AC_INIT(config.h.in) # config.h.in as created by "autoheader"
+dnl AM_INIT_AUTOMAKE(testpkg, 0.1.1) # makes #undef VERSION and PACKAGE
+dnl AM_CONFIG_HEADER(config.h) # prep config.h from config.h.in
+dnl AX_PREFIX_CONFIG_H(mylib/_config.h) # prep mylib/_config.h from it..
+dnl AC_MEMORY_H # makes "#undef NEED_MEMORY_H"
+dnl AC_C_CONST_H # makes "#undef const"
+dnl AC_OUTPUT(Makefile) # creates the "config.h" now
+dnl # and also mylib/_config.h
+dnl
+dnl if the argument to AX_PREFIX_CONFIG_H would have been omitted then
+dnl the default outputfile would have been called simply
+dnl "testpkg-config.h", but even under the name "mylib/_config.h" it
+dnl contains prefix-defines like
+dnl
+dnl #ifndef TESTPKG_VERSION
+dnl #define TESTPKG_VERSION "0.1.1"
+dnl #endif
+dnl #ifndef TESTPKG_NEED_MEMORY_H
+dnl #define TESTPKG_NEED_MEMORY_H 1
+dnl #endif
+dnl #ifndef _testpkg_const
+dnl #define _testpkg_const _const
+dnl #endif
+dnl
+dnl and this "mylib/_config.h" can be installed along with other
+dnl header-files, which is most convenient when creating a shared
+dnl library (that has some headers) where some functionality is
+dnl dependent on the OS-features detected at compile-time. No need to
+dnl invent some "mylib-confdefs.h.in" manually. :-)
+dnl
+dnl Note that some AC_DEFINEs that end up in the config.h file are
+dnl actually self-referential - e.g. AC_C_INLINE, AC_C_CONST, and the
+dnl AC_TYPE_OFF_T say that they "will define inline|const|off_t if the
+dnl system does not do it by itself". You might want to clean up about
+dnl these - consider an extra mylib/conf.h that reads something like:
+dnl
+dnl #include <mylib/_config.h>
+dnl #ifndef _testpkg_const
+dnl #define _testpkg_const const
+dnl #endif
+dnl
+dnl and then start using _testpkg_const in the header files. That is
+dnl also a good thing to differentiate whether some library-user has
+dnl starting to take up with a different compiler, so perhaps it could
+dnl read something like this:
+dnl
+dnl #ifdef _MSC_VER
+dnl #include <mylib/_msvc.h>
+dnl #else
+dnl #include <mylib/_config.h>
+dnl #endif
+dnl #ifndef _testpkg_const
+dnl #define _testpkg_const const
+dnl #endif
+dnl
+dnl @category Misc
+dnl @author Guido U. Draheim <guidod@gmx.de>
+dnl @version 2003-07-03
+dnl @license GPLWithACException
+AC_DEFUN([AX_PREFIX_CONFIG_H],[dnl
+AC_CONFIG_COMMANDS([ifelse($1,,$PACKAGE-config.h,$1)],[dnl
+AS_VAR_PUSHDEF([_OUT],[ac_prefix_conf_OUT])dnl
+AS_VAR_PUSHDEF([_DEF],[ac_prefix_conf_DEF])dnl
+AS_VAR_PUSHDEF([_PKG],[ac_prefix_conf_PKG])dnl
+AS_VAR_PUSHDEF([_LOW],[ac_prefix_conf_LOW])dnl
+AS_VAR_PUSHDEF([_UPP],[ac_prefix_conf_UPP])dnl
+AS_VAR_PUSHDEF([_INP],[ac_prefix_conf_INP])dnl
+m4_pushdef([_script],[conftest.prefix])dnl
+m4_pushdef([_symbol],[m4_cr_Letters[]m4_cr_digits[]_])dnl
+_OUT=`echo ifelse($1, , $PACKAGE-config.h, $1)`
+_DEF=`echo _$_OUT | sed -e "y:m4_cr_letters:m4_cr_LETTERS[]:" -e "s/@<:@^m4_cr_Letters@:>@/_/g"`
+_PKG=`echo ifelse($2, , $PACKAGE, $2)`
+_LOW=`echo _$_PKG | sed -e "y:m4_cr_LETTERS-:m4_cr_letters[]_:"`
+_UPP=`echo $_PKG | sed -e "y:m4_cr_letters-:m4_cr_LETTERS[]_:" -e "/^@<:@m4_cr_digits@:>@/s/^/_/"`
+_INP=`echo "ifelse($3,,,$3)" | sed -e 's/ *//'`
+if test ".$_INP" = "."; then
+ for ac_file in : $CONFIG_HEADERS; do test "_$ac_file" = _: && continue
+ case "$ac_file" in
+ *.h) _INP=$ac_file ;;
+ *)
+ esac
+ test ".$_INP" != "." && break
+ done
+fi
+if test ".$_INP" = "."; then
+ case "$_OUT" in
+ */*) _INP=`basename "$_OUT"`
+ ;;
+ *-*) _INP=`echo "$_OUT" | sed -e "s/@<:@_symbol@:>@*-//"`
+ ;;
+ *) _INP=config.h
+ ;;
+ esac
+fi
+if test -z "$_PKG" ; then
+ AC_MSG_ERROR([no prefix for _PREFIX_PKG_CONFIG_H])
+else
+ if test ! -f "$_INP" ; then if test -f "$srcdir/$_INP" ; then
+ _INP="$srcdir/$_INP"
+ fi fi
+ AC_MSG_NOTICE(creating $_OUT - prefix $_UPP for $_INP defines)
+ if test -f $_INP ; then
+ echo "s/^@%:@undef *\\(@<:@m4_cr_LETTERS[]_@:>@\\)/@%:@undef $_UPP""_\\1/" > _script
+ echo "s/^@%:@undef *\\(@<:@m4_cr_letters@:>@\\)/@%:@undef $_LOW""_\\1/" >> _script
+ echo "s/^@%:@def[]ine *\\(@<:@m4_cr_LETTERS[]_@:>@@<:@_symbol@:>@*\\)\\(.*\\)/@%:@ifndef $_UPP""_\\1 \\" >> _script
+ echo "@%:@def[]ine $_UPP""_\\1 \\2 \\" >> _script
+ echo "@%:@endif/" >>_script
+ echo "s/^@%:@def[]ine *\\(@<:@m4_cr_letters@:>@@<:@_symbol@:>@*\\)\\(.*\\)/@%:@ifndef $_LOW""_\\1 \\" >> _script
+ echo "@%:@define $_LOW""_\\1 \\2 \\" >> _script
+ echo "@%:@endif/" >> _script
+ # now executing _script on _DEF input to create _OUT output file
+ echo "@%:@ifndef $_DEF" >$tmp/pconfig.h
+ echo "@%:@def[]ine $_DEF 1" >>$tmp/pconfig.h
+ echo ' ' >>$tmp/pconfig.h
+ echo /'*' $_OUT. Generated automatically at end of configure. '*'/ >>$tmp/pconfig.h
+
+ sed -f _script $_INP >>$tmp/pconfig.h
+ echo ' ' >>$tmp/pconfig.h
+ echo '/* once:' $_DEF '*/' >>$tmp/pconfig.h
+ echo "@%:@endif" >>$tmp/pconfig.h
+ if cmp -s $_OUT $tmp/pconfig.h 2>/dev/null; then
+ AC_MSG_NOTICE([$_OUT is unchanged])
+ else
+ ac_dir=`AS_DIRNAME(["$_OUT"])`
+ AS_MKDIR_P(["$ac_dir"])
+ rm -f "$_OUT"
+ mv $tmp/pconfig.h "$_OUT"
+ fi
+ cp _script _configs.sed
+ else
+ AC_MSG_ERROR([input file $_INP does not exist - skip generating $_OUT])
+ fi
+ rm -f conftest.*
+fi
+m4_popdef([_symbol])dnl
+m4_popdef([_script])dnl
+AS_VAR_POPDEF([_INP])dnl
+AS_VAR_POPDEF([_UPP])dnl
+AS_VAR_POPDEF([_LOW])dnl
+AS_VAR_POPDEF([_PKG])dnl
+AS_VAR_POPDEF([_DEF])dnl
+AS_VAR_POPDEF([_OUT])dnl
+],[PACKAGE="$PACKAGE"])])
+
+dnl implementation note: a bug report (31.5.2005) from Marten Svantesson points
+dnl out a problem where `echo "\1"` results in a Control-A. The unix standard
+dnl http://www.opengroup.org/onlinepubs/000095399/utilities/echo.html
+dnl defines all backslash-sequences to be inherently non-portable asking
+dnl for replacement mit printf. Some old systems had problems with that
+dnl one either. However, the latest libtool (!) release does export an $ECHO
+dnl (and $echo) that does the right thing - just one question is left: what
+dnl was the first version to have it? Is it greater 2.58 ?
+