1# glibc21.m4 serial 2 (fileutils-4.1.3, gettext-0.10.40)
2dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
3dnl This file is free software, distributed under the terms of the GNU
4dnl General Public License.  As a special exception to the GNU General
5dnl Public License, this file may be distributed as part of a program
6dnl that contains a configuration script generated by Autoconf, under
7dnl the same distribution terms as the rest of that program.
8
9# Test for the GNU C Library, version 2.1 or newer.
10# From Bruno Haible.
11
12AC_DEFUN([jm_GLIBC21],
13  [
14    AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
15      ac_cv_gnu_library_2_1,
16      [AC_EGREP_CPP([Lucky GNU user],
17	[
18#include <features.h>
19#ifdef __GNU_LIBRARY__
20 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
21  Lucky GNU user
22 #endif
23#endif
24	],
25	ac_cv_gnu_library_2_1=yes,
26	ac_cv_gnu_library_2_1=no)
27      ]
28    )
29    AC_SUBST(GLIBC21)
30    GLIBC21="$ac_cv_gnu_library_2_1"
31  ]
32)
33