commit 8c8c3f859e9eb8fde014f5837f1adb8b5481be44
author Matt Turner <mattst88@gmail.com> Thu Jun 30 15:02:49 2016 -0700
committer Matt Turner <mattst88@gmail.com> Thu Jul 21 10:45:28 2016 -0700
tree cc012b00990854393c016893bdc9f46a8ecd8305
parent 5353855e9d0f470d9d4799850002a181d2b3b151

mesa: Add -fno-math-errno -fno-trapping-math to CXXFLAGS.

Not sure why I forgot to add them to CXXFLAGS in commit f55c408067 or
commit 875458b778. Cuts about 1k of .text.

   text     data      bss      dec      hex  filename
5806354   287816    29384  6123554   5d7022  i965_dri.so before
5805497   287744    29384  6122625   5d6c81  i965_dri.so after

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

configure.ac

diff --git a/configure.ac b/configure.ac
index accd1a1..bbc3af4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -344,6 +344,9 @@
 
     # Work around aliasing bugs - developers should comment this out
     CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
+
+    # We don't want floating-point math functions to set errno or trap
+    CXXFLAGS="$CXXFLAGS -fno-math-errno -fno-trapping-math"
 fi
 
 AC_SUBST([MSVC2013_COMPAT_CFLAGS])