1# rpmatch.m4 serial 10
2dnl Copyright (C) 2002-2003, 2007-2021 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_RPMATCH],
8[
9  dnl Persuade glibc <stdlib.h> to declare rpmatch().
10  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
11
12  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
13  AC_CHECK_FUNCS([rpmatch])
14  if test $ac_cv_func_rpmatch = no; then
15    HAVE_RPMATCH=0
16  fi
17])
18
19# Prerequisites of lib/rpmatch.c.
20AC_DEFUN([gl_PREREQ_RPMATCH], [
21  AC_CACHE_CHECK([for nl_langinfo and YESEXPR], [gl_cv_langinfo_yesexpr],
22    [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
23       [[char* cs = nl_langinfo(YESEXPR); return !cs;]])],
24       [gl_cv_langinfo_yesexpr=yes],
25       [gl_cv_langinfo_yesexpr=no])
26    ])
27  if test $gl_cv_langinfo_yesexpr = yes; then
28    AC_DEFINE([HAVE_LANGINFO_YESEXPR], [1],
29      [Define if you have <langinfo.h> and nl_langinfo(YESEXPR).])
30  fi
31])
32