kbuild: change out-of-tree build

[karo-tx-uboot.git] / arch / sandbox / cpu / Makefile

diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index 404ff6793f39d32148207e97fff13e823abcd13f..c5f5426b05f2041e5d15e14ae45ffb244d0b56f5 100644 (file)
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -10,5 +10,7 @@
 obj-y  := cpu.o os.o start.o state.o
 
 # os.c is build in the system environment, so needs standard includes
-$(obj)os.o: ALL_CFLAGS := $(filter-out -nostdinc,$(ALL_CFLAGS))
-$(obj).depend.os: CPPFLAGS := $(filter-out -nostdinc,$(CPPFLAGS))
+$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\
+       $(patsubst -I%,-idirafter%,$(CFLAGS)))
+$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\
+       $(patsubst -I%,-idirafter%,$(CPPFLAGS)))