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1.1 ! misho 1: # glibc21.m4 serial 3 ! 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 2.1 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: )