#serial 2 | |
# Test for the GNU C Library, version 2.1 or newer. | |
# From Bruno Haible. | |
AC_DEFUN([jm_GLIBC21], | |
[ | |
AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer, | |
ac_cv_gnu_library_2_1, | |
[AC_EGREP_CPP([Lucky GNU user], | |
[ | |
#include <features.h> | |
#ifdef __GNU_LIBRARY__ | |
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) | |
Lucky GNU user | |
#endif | |
#endif | |
], | |
ac_cv_gnu_library_2_1=yes, | |
ac_cv_gnu_library_2_1=no) | |
] | |
) | |
AC_SUBST(GLIBC21) | |
GLIBC21="$ac_cv_gnu_library_2_1" | |
] | |
) |