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Diffstat (limited to 'gnulib/m4/memcmp.m4')
| -rw-r--r-- | gnulib/m4/memcmp.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gnulib/m4/memcmp.m4 b/gnulib/m4/memcmp.m4 new file mode 100644 index 0000000..a8d87b9 --- /dev/null +++ b/gnulib/m4/memcmp.m4 @@ -0,0 +1,31 @@ +# 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], [:]) |