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-rw-r--r--util/build.mk3
1 files changed, 2 insertions, 1 deletions
diff --git a/util/build.mk b/util/build.mk
index a9e1a040ab..8708c0eb89 100644
--- a/util/build.mk
+++ b/util/build.mk
@@ -31,7 +31,8 @@ $(out)/util/genvif: $(out)/util/usb_pd_policy.o board/$(BOARD)/board.h \
include/usb_pd.h include/usb_pd_tcpm.h
$(out)/util/genvif: BUILD_LDFLAGS+=$(out)/util/usb_pd_policy.o -flto
-STANDALONE_FLAGS=-ffreestanding -fno-builtin -nostdinc -Ibuiltin/ -D"__keep= "
+STANDALONE_FLAGS=-ffreestanding -fno-builtin -nostdinc \
+ -Ibuiltin/ -D"__keep= " -DVIF_BUILD
$(out)/util/usb_pd_policy.o: board/$(BOARD)/usb_pd_policy.c
$(call quiet,c_to_vif,BUILDCC)
deps += $(out)/util/usb_pd_policy.o.d