compat: use correct -include path

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/src/compat/Kbuild.include b/src/compat/Kbuild.include
index 863cd28..94159fc 100644
--- a/src/compat/Kbuild.include
+++ b/src/compat/Kbuild.include
@@ -3,13 +3,14 @@
 # Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 ifeq ($(wildcard $(src)/compat/compat.h),)
-ccflags-y += -include $(srctree)/$(src)/compat/compat.h
-asflags-y += -include $(srctree)/$(src)/compat/compat-asm.h
+cmd_include_path_prefix := $(srctree)/$(src)
 else
-ccflags-y += -include $(src)/compat/compat.h
-asflags-y += -include $(src)/compat/compat-asm.h
+cmd_include_path_prefix := $(src)
 endif
 
+ccflags-y += -include $(cmd_include_path_prefix)/compat/compat.h
+asflags-y += -include $(cmd_include_path_prefix)/compat/compat-asm.h
+
 ifeq ($(wildcard $(srctree)/include/linux/ptr_ring.h),)
 ccflags-y += -I$(src)/compat/ptr_ring/include
 endif
@@ -42,7 +43,7 @@ wireguard-y += compat/udp_tunnel/udp_tunnel.o
 endif
 
 ifeq ($(shell grep -F "int crypto_memneq" "$(srctree)/include/crypto/algapi.h"),)
-ccflags-y += -include $(src)/compat/memneq/include.h
+ccflags-y += -include $(cmd_include_path_prefix)/compat/memneq/include.h
 wireguard-y += compat/memneq/memneq.o
 endif