Mesa (master): mesa: Add -fno-trapping-math to CFLAGS.

[Matt Turner]

Module: Mesa
Branch: master
Commit: f55c408067a3ea3529fcf7cbbaa1a041a4a8849d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f55c408067a3ea3529fcf7cbbaa1a041a4a8849d

Author: Matt Turner <mattst88 at gmail.com>
Date:   Fri Jul 31 12:19:46 2015 -0700

mesa: Add -fno-trapping-math to CFLAGS.

Cuts about 1k of .text size.

   text    data     bss     dec     hex filename
4983676  197808   26328 5207812  4f7704 i965_dri.so before
4982522  197800   26328 5206650  4f727a i965_dri.so after

Reviewed-by: Roland Scheidegger <sroland at vmware.com>

---

 configure.ac |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index dc9272d..36197d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -286,8 +286,8 @@ if test "x$GCC" = xyes; then
     # Work around aliasing bugs - developers should comment this out
     CFLAGS="$CFLAGS -fno-strict-aliasing"
 
-    # We don't want floating-point math functions to set errno
-    CFLAGS="$CFLAGS -fno-math-errno"
+    # We don't want floating-point math functions to set errno or trap
+    CFLAGS="$CFLAGS -fno-math-errno -fno-trapping-math"
 
     # gcc's builtin memcmp is slower than glibc's
     # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052