Attachment 27990 Details for Bug 22939 – [PATCH 3/4] Remove -fbad-function-cast and add -fstrict-aliasing=2.

[patch] [PATCH 3/4] Remove -fbad-function-cast and add -fstrict-aliasing=2.

0003-Remove-fbad-function-cast-and-add-fstrict-aliasing-2.patch (text/plain), 1.06 KB, created by Pauli on 2009-07-25 06:44:28 UTC

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Creator: Pauli

Created: 2009-07-25 06:44:28 UTC

Size: 1.06 KB

patch

obsolete

>From 41b162f8acec50f7bafd00a60bd8257650633ac0 Mon Sep 17 00:00:00 2001
>From: Pauli Nieminen <suokkos@gmail.com>
>Date: Sat, 25 Jul 2009 16:28:21 +0300
>Subject: [PATCH 3/4] Remove -fbad-function-cast and add -fstrict-aliasing=2.
>
>-fbad-function-cast generates too much warnings from valid code to be used.
>-fstrict-aliasing helps gcc to optimize loops assigning value from memory in loop.
>---
> xorg-macros.m4.in |    3 +--
> 1 files changed, 1 insertions(+), 2 deletions(-)
>
>diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in
>index d10aea6..a2e0f2c 100644
>--- a/xorg-macros.m4.in
>+++ b/xorg-macros.m4.in
>@@ -440,8 +440,7 @@ AC_DEFUN([XORG_CWARNFLAGS], [
> AC_REQUIRE([AC_PROG_CC])
> if  test "x$GCC" = xyes ; then
>     CWARNFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
>--Wmissing-declarations -Wnested-externs -fno-strict-aliasing \
>--Wbad-function-cast"
>+-Wmissing-declarations -Wnested-externs -fstrict-aliasing=2"
>     case `$CC -dumpversion` in
>     3.4.* | 4.*)
> 	CWARNFLAGS="$CWARNFLAGS -Wold-style-definition -Wdeclaration-after-statement"
>-- 
>1.6.3.3
>

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