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# memcmp.m4 serial 13
dnl Copyright (C) 2002, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_MEMCMP],
[
if test $cross_compiling != no; then
# AC_FUNC_MEMCMP as of 2.62 defaults to 'no' when cross compiling.
# We default to yes if memcmp appears to exist, which works
# better for MinGW.
AC_CACHE_CHECK([whether cross-compiling target has memcmp],
[ac_cv_func_memcmp_working],
[AC_LINK_IFELSE([
AC_LANG_PROGRAM([[#include <string.h>
]], [[int ret = memcmp ("foo", "bar", 0);]])],
[ac_cv_func_memcmp_working=yes],
[ac_cv_func_memcmp_working=no])])
fi
AC_FUNC_MEMCMP
dnl Note: AC_FUNC_MEMCMP does AC_LIBOBJ(memcmp).
if test $ac_cv_func_memcmp_working = no; then
AC_DEFINE(memcmp, rpl_memcmp,
[Define to rpl_memcmp if the replacement function should be used.])
gl_PREREQ_MEMCMP
fi
])
# Prerequisites of lib/memcmp.c.
AC_DEFUN([gl_PREREQ_MEMCMP], [:])
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