HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| 7f8e40b7 NJ |
1 | # glibc21.m4 serial 4 |
| 2 | dnl Copyright (C) 2000-2002, 2004, 2008 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 2.1 or newer. | |
| 8 | # From Bruno Haible. | |
| 9 | ||
| 10 | AC_DEFUN([gl_GLIBC21], | |
| 11 | [ | |
| 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], | |
| 15 | [ | |
| 16 | #include <features.h> | |
| 17 | #ifdef __GNU_LIBRARY__ | |
| 18 | #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) | |
| 19 | Lucky GNU user | |
| 20 | #endif | |
| 21 | #endif | |
| 22 | ], | |
| 23 | [ac_cv_gnu_library_2_1=yes], | |
| 24 | [ac_cv_gnu_library_2_1=no]) | |
| 25 | ] | |
| 26 | ) | |
| 27 | AC_SUBST([GLIBC21]) | |
| 28 | GLIBC21="$ac_cv_gnu_library_2_1" | |
| 29 | ] | |
| 30 | ) |