tglibc21.m4 - vaccinewars - be a doctor and try to vaccinate the world
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       tglibc21.m4 (854B)
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            1 # glibc21.m4 serial 4
            2 dnl Copyright (C) 2000-2002, 2004, 2008-2010 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 )