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-rw-r--r--arch/sandbox/os/Makefile12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/sandbox/os/Makefile b/arch/sandbox/os/Makefile
index 117f05eba0..2980301e15 100644
--- a/arch/sandbox/os/Makefile
+++ b/arch/sandbox/os/Makefile
@@ -1,4 +1,14 @@
-CPPFLAGS := -Iinclude/asm/arch -P
+machine-y := sandbox
+
+machdirs := $(patsubst %,arch/sandbox/mach-%/,$(machine-y))
+
+ifeq ($(KBUILD_SRC),)
+CPPFLAGS := $(patsubst %,-I%include,$(machdirs))
+else
+CPPFLAGS = $(patsubst %,-I$(srctree)/%include,$(machdirs))
+endif
+
+CPPFLAGS += -P
CFLAGS := -Wall
NOSTDINC_FLAGS :=