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-rw-r--r--arch/um/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 4fc79f3030e4..3474b105ee6d 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -66,6 +66,8 @@ include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)
#This will adjust *FLAGS accordingly to the platform.
include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
+KBUILD_CPPFLAGS += -I$(srctree)/arch/$(HEADER_ARCH)/include
+
# -Derrno=kernel_errno - This turns all kernel references to errno into
# kernel_errno to separate them from the libc errno. This allows -fno-common
# in KBUILD_CFLAGS. Otherwise, it would cause ld to complain about the two different
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