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-rw-r--r--test/Rules.mak10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/Rules.mak b/test/Rules.mak
index 92554c1f7..8e154c590 100644
--- a/test/Rules.mak
+++ b/test/Rules.mak
@@ -86,6 +86,16 @@ CC_IPREFIX := $(shell $(CC) --print-file-name=include)
CC_INC := -I$(dir $(CC_IPREFIX))include-fixed -I$(CC_IPREFIX)
CFLAGS += $(CC_INC)
+ifneq ($(KERNEL_HEADERS),)
+ifeq ($(patsubst /%,/,$(KERNEL_HEADERS)),/)
+# Absolute path in KERNEL_HEADERS
+CFLAGS += -I$(KERNEL_HEADERS)
+else
+# Relative path in KERNEL_HEADERS
+CFLAGS += -I$(top_builddir)$(KERNEL_HEADERS)
+endif
+endif
+
# Can't add $(OPTIMIZATION) here, it may be target-specific.
# Just adding -Os for now.
HOST_CFLAGS += $(XWARNINGS) -Os $(XCOMMON_CFLAGS)