From 61163efae02040f66a95c8ed17f4407951ba58fa Mon Sep 17 00:00:00 2001
From: Behan Webster <behanw@converseincode.com>
Date: Tue, 3 Sep 2013 22:27:23 -0400
Subject: [PATCH] kbuild: LLVMLinux: Add Kbuild support for building kernel
 with Clang
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Add support to toplevel Makefile for compiling with clang, both for
HOSTCC and CC. Use cc-option to prevent gcc option from breaking clang, and
from clang options from breaking gcc.

Clang 3.4 semantics are the same as gcc semantics for unsupported flags. For
unsupported warnings clang 3.4 returns true but shows a warning and gcc shows
a warning and returns false.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Cc: PaX Team <pageexec@freemail.hu>
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