diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 62e5459b..3c93cdf3 100644 --- a/configure.ac +++ b/configure.ac @@ -1,5 +1,5 @@ # Configure template for GNU m4. -*-Autoconf-*- -# Copyright (C) 1991-1994, 2000-2002, 2004-2010, 2013 Free Software +# Copyright (C) 1991-1994, 2000-2002, 2004-2013 Free Software # Foundation, Inc. # # This file is part of GNU M4. @@ -142,8 +142,13 @@ if test "$gl_gcc_warnings" = yes; then AC_SUBST([WARN_CFLAGS]) - AC_DEFINE([_FORTIFY_SOURCE], [2], - [enable compile-time and run-time bounds-checking, and some warnings]) + AH_VERBATIM([FORTIFY_SOURCE], + [/* Enable compile-time and run-time bounds-checking, and some warnings, + without upsetting newer glibc. */ + #if defined __OPTIMIZE__ && __OPTIMIZE__ + # define _FORTIFY_SOURCE 2 + #endif + ]) fi # Use gcc's -pipe option if available: for faster compilation. |