| Adam Tkac | fc4cd71 | 2009-03-11 11:14:37 +0000 | [diff] [blame] | 1 | # glibc2.m4 serial 1 |
| 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. |
| 6 | |
| 7 | # Test for the GNU C Library, version 2.0 or newer. |
| 8 | # From Bruno Haible. |
| 9 | |
| 10 | AC_DEFUN([gt_GLIBC2], |
| 11 | [ |
| 12 | AC_CACHE_CHECK(whether we are using the GNU C Library 2 or newer, |
| 13 | ac_cv_gnu_library_2, |
| 14 | [AC_EGREP_CPP([Lucky GNU user], |
| 15 | [ |
| 16 | #include <features.h> |
| 17 | #ifdef __GNU_LIBRARY__ |
| 18 | #if (__GLIBC__ >= 2) |
| 19 | Lucky GNU user |
| 20 | #endif |
| 21 | #endif |
| 22 | ], |
| 23 | ac_cv_gnu_library_2=yes, |
| 24 | ac_cv_gnu_library_2=no) |
| 25 | ] |
| 26 | ) |
| 27 | AC_SUBST(GLIBC2) |
| 28 | GLIBC2="$ac_cv_gnu_library_2" |
| 29 | ] |
| 30 | ) |