[PATCH] MIPS: fix out-of-tree build

[Antony Pavlov]

The commit

  commit d25d94bea67308e29db895d418f3f1f8153ae2ea
  Author: Antony Pavlov <antonynpavlov at gmail.com>
  Date:   Fri Jun 1 13:23:20 2012 +0400

      MIPS: make possible board-specific header files

      This patch makes possible to put a board-specific
      header file (e. g. foobar.h) to arch/mips/boards/*/include/board/.

breaks the out-of-tree build for the boards that use it (rzx50).

Reported-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 arch/mips/Makefile |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 5e40de7..f32089d 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -88,14 +88,18 @@ else
 BOARD :=
 endif
 
+ifeq ($(KBUILD_SRC),)
+CPPFLAGS += -I$(BOARD)/include
+else
+CPPFLAGS += -I$(srctree)/$(BOARD)/include
+endif
+
 ifneq ($(machine-y),)
 MACH  := arch/mips/mach-$(machine-y)/
 else
 MACH  :=
 endif
 
-CPPFLAGS += -I$(BOARD)/include
-
 common-y += $(BOARD) $(MACH)
 common-y += arch/mips/lib/
 common-y += arch/mips/boot/
-- 
1.7.10.4