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diff --git a/Build/source/libs/zziplib/zziplib-0.13.58/m4/ax_configure_args.m4 b/Build/source/libs/zziplib/zziplib-0.13.58/m4/ax_configure_args.m4
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+dnl /usr/share/aclocal/guidod-cvs/ax_configure_args.m4
+dnl @synopsis AX_CONFIGURE_ARGS
+dnl
+dnl Helper macro for AX_ENABLE_BUILDDIR and AX_ENABLE_BUILDDIR_UNAME
+dnl
+dnl The traditional way of starting a subdir-configure is running the
+dnl script with ${1+"$@"} but since autoconf 2.60 this is broken.
+dnl Instead we have to rely on eval'ing $ac_configure_args however
+dnl some old autoconf versions do not provide that. To ensure maximum
+dnl portability of autoconf extension macros this helper can be
+dnl AC_REQUIRE'd so that $ac_configure_args will alsways be present.
+dnl
+dnl Sadly, the traditional "exec $SHELL" of the enable_builddir macros
+dnl is spoiled now and must be replaced by eval + exit $?
+dnl
+dnl example:
+dnl AC_DEFUN([AX_ENABLE_SUBDIR],[dnl
+dnl AC_REQUIRE([AX_CONFIGURE_ARGS])dnl
+dnl eval $SHELL $ac_configure_args || exit $?
+dnl ...])
+dnl
+dnl @category Misc
+dnl @author Guido Draheim
+dnl @version 2007-02-01
+dnl @license GPLWithACException
+
+AC_DEFUN([AX_CONFIGURE_ARGS],[
+ # [$]@ is unsable in 2.60+ but earlier autoconf had no ac_configure_args
+ if test "${ac_configure_args+set}" != "set" ; then
+ ac_configure_args=
+ for ac_arg in ${1+"[$]@"}; do
+ ac_configure_args="$ac_configure_args '$ac_arg'"
+ done
+ fi
+])
+