From d4bc590f8716f7dde6b7bca319097ac30a8cb0b4 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Thu, 5 Jun 2014 17:44:44 +0200
Subject: [PATCH] um: Fix for relative objtree when generating x86 headers

In an O= build, rely on the generated Makefile to call the main Makefile
properly. When building in the source tree, we do not need to specify
the -C and O= either. This fixes the problem when $(objtree) is a
relative path and the -C changes the directory.

Reported-by: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 arch/um/Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 36e658a4291c6..e4b1a9639c4dd 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -111,8 +111,7 @@ endef
 KBUILD_KCONFIG := $(HOST_DIR)/um/Kconfig
 
 archheaders:
-	$(Q)$(MAKE) -C '$(srctree)' KBUILD_SRC= \
-		ARCH=$(HEADER_ARCH) O='$(objtree)' archheaders
+	$(Q)$(MAKE) KBUILD_SRC= ARCH=$(HEADER_ARCH) archheaders
 
 archprepare: include/generated/user_constants.h
 
-- 
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