From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Sun, 17 Feb 2013 15:03:36 +0000 (+0100)
Subject: perf tools: check if -DFORTIFY_SOURCE=2 is allowed
X-Git-Tag: v3.9-rc4~18^2~3^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2f32479e5526a1ab3b4e43910fcb279871524ce;p=pandora-kernel.git

perf tools: check if -DFORTIFY_SOURCE=2 is allowed

It seems gcc (4.7.2) defines _FORTIFY_SOURCE internally and becomes
confused when it sees another definition in flags.

For me, build failed like this:

CHK glibc
Makefile:548: *** No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static. Stop.

and only with V=1 it printed:

<command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror]
<stdin>:1:0: note: this is the location of the previous definition

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1361113416-8662-1-git-send-email-marcin.slusarz@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

Reading git-diff-tree failed