2
dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
3
dnl This file is free software; the Free Software Foundation
4
dnl gives unlimited permission to copy and/or distribute it,
5
dnl with or without modifications, as long as this notice is preserved.
7
# Test for the GNU C Library, version 2.1 or newer.
10
AC_DEFUN([gl_GLIBC21],
12
AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
13
ac_cv_gnu_library_2_1,
14
[AC_EGREP_CPP([Lucky GNU user],
17
#ifdef __GNU_LIBRARY__
18
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
23
ac_cv_gnu_library_2_1=yes,
24
ac_cv_gnu_library_2_1=no)
28
GLIBC21="$ac_cv_gnu_library_2_1"