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Some toolchains (like Hardened Gentoo) define _FORTIFY_SOURCE in the built-in, default args. This causes perf builds to fail with: <command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror] <built-in>: note: this is the location of the previous definition cc1: all warnings being treated as errors To avoid this, undefine _FORTIFY_SOURCE before (possibly re-)defining it in tools/lib/api. v2 applies cleanly on top of already pulled kbuild changes for 4.1-rc1. Signed-off-by: Bobby Powers <bobbypowers@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Dirk Gouders <dirk@gouders.net> Cc: Michal Marek <mmarek@suse.cz> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-kbuild@vger.kernel.org Link: http://lkml.kernel.org/r/1429658381-3039-1-git-send-email-bobbypowers@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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