From 70e4f8f928f8cc29414b3d49d92cb328f85a4437 Mon Sep 17 00:00:00 2001
From: Vladimir Still <vl.still@gmail.com>
Date: Fri, 7 Feb 2014 18:16:24 +0100
Subject: [PATCH] perf: Allow proceeding in build even if patch fails. Patching
 fails for linux 3.13 but it builds OK.

---
 pkgs/os-specific/linux/kernel/perf.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/os-specific/linux/kernel/perf.nix b/pkgs/os-specific/linux/kernel/perf.nix
index 0a92e39c153a..f486f55654e6 100644
--- a/pkgs/os-specific/linux/kernel/perf.nix
+++ b/pkgs/os-specific/linux/kernel/perf.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   preConfigure = ''
     cd tools/perf
     sed -i s,/usr/include/elfutils,$elfutils/include/elfutils, Makefile
-    patch -p1 < ${./perf.diff}
+    patch -p1 < ${./perf.diff} || true
     [ -f bash_completion ] && sed -i 's,^have perf,_have perf,' bash_completion
     export makeFlags="DESTDIR=$out $makeFlags"
   '';