Improve static checking of integer overflow and stack smashing.

* configure.ac (WARN_CFLAGS): Add -Wstack-protector and
-Wstrict-overflow if using GCC 4.7.2 or later on a platform with
at least 64-bit long int.  This improves static checking on these
platforms, when configured with --enable-gcc-warnings.

1 files changed, 8 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 05e1a14d55d..6852069087a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2012-11-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Improve static checking of integer overflow and stack smashing.
+        * configure.ac (WARN_CFLAGS): Add -Wstack-protector and
+        -Wstrict-overflow if using GCC 4.7.2 or later on a platform with
+        at least 64-bit long int.  This improves static checking on these
+        platforms, when configured with --enable-gcc-warnings.
+
 2012-11-17  Paul Eggert  <eggert@cs.ucla.edu>
 
         Assume POSIX 1003.1-1988 or later for fcntl.h (Bug#12881).