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| author | Ying Wang <wangying@google.com> | 2013-04-05 16:01:00 -0700 |
|---|---|---|
| committer | Ying Wang <wangying@google.com> | 2013-04-05 16:01:00 -0700 |
| commit | 05436638acc7c010349a69c3395f1a57c642dc62 (patch) | |
| tree | c468bc764f71f5b2e4b6fe0692f18929f5ebde62 /m4/glibc21.m4 | |
| parent | 12a8de665f0fdd63df2944d5da7c75d5c49e67b9 (diff) | |
| download | bison-05436638acc7c010349a69c3395f1a57c642dc62.tar.gz | |
Upgrade bison from 2.3 to 2.7
See README.android for how the upgrade was done.
Bug: 8517572
Change-Id: I1e42ab59ff385130a7e488371c6058a13add244d
Diffstat (limited to 'm4/glibc21.m4')
| -rw-r--r-- | m4/glibc21.m4 | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/m4/glibc21.m4 b/m4/glibc21.m4 new file mode 100644 index 00000000..c938fb1a --- /dev/null +++ b/m4/glibc21.m4 @@ -0,0 +1,34 @@ +# glibc21.m4 serial 5 +dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2012 Free Software Foundation, +dnl 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 2.1 or newer, or uClibc. +# From Bruno Haible. + +AC_DEFUN([gl_GLIBC21], + [ + AC_CACHE_CHECK([whether we are using the GNU C Library >= 2.1 or uClibc], + [ac_cv_gnu_library_2_1], + [AC_EGREP_CPP([Lucky], + [ +#include <features.h> +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) + Lucky GNU user + #endif +#endif +#ifdef __UCLIBC__ + Lucky user +#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" + ] +) |