From 875458b778e8d389e00f42269e716a3cb2761fab Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Fri, 31 Jul 2015 12:18:37 -0700 Subject: [PATCH] mesa: Add -fno-math-errno to CFLAGS. Cuts about 9k of .text size. text data bss dec hex filename 4992804 197808 26328 5216940 4f9aac i965_dri.so before 4983676 197808 26328 5207812 4f7704 i965_dri.so after Also, Darwin's libm does not ever set errno, so if we care about those systems we shouldn't rely on errno anyway. Reviewed-by: Roland Scheidegger --- configure.ac | 3 +++ 1 file changed, 3 insertions(+) diff --git a/configure.ac b/configure.ac index 248f6183172..dc9272d3016 100644 --- a/configure.ac +++ b/configure.ac @@ -286,6 +286,9 @@ 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="$CFLAGS -fno-math-errno" + # gcc's builtin memcmp is slower than glibc's # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052 CFLAGS="$CFLAGS -fno-builtin-memcmp" -- 2.30.2