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Diffstat (limited to 'm4/glibc2.m4')
| -rw-r--r-- | m4/glibc2.m4 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/m4/glibc2.m4 b/m4/glibc2.m4 new file mode 100644 index 0000000000..e8f5bfe6ed --- /dev/null +++ b/m4/glibc2.m4 @@ -0,0 +1,30 @@ +# glibc2.m4 serial 1 +dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Test for the GNU C Library, version 2.0 or newer. +# From Bruno Haible. + +AC_DEFUN([gt_GLIBC2], + [ + AC_CACHE_CHECK(whether we are using the GNU C Library 2 or newer, + ac_cv_gnu_library_2, + [AC_EGREP_CPP([Lucky GNU user], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) + Lucky GNU user + #endif +#endif + ], + ac_cv_gnu_library_2=yes, + ac_cv_gnu_library_2=no) + ] + ) + AC_SUBST(GLIBC2) + GLIBC2="$ac_cv_gnu_library_2" + ] +) |