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-rw-r--r--Makefile.inc5
1 files changed, 5 insertions, 0 deletions
diff --git a/Makefile.inc b/Makefile.inc
index fcdc72ccce..c40cec8842 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -60,6 +60,10 @@ COREBOOT_EXPORTS += objcbfs
objgenerated := $(obj)/generated
COREBOOT_EXPORTS += objgenerated
+## CCACHE_EXTRAFILES can be set by individual rules to help CCACHE
+## discover dependencies it might not notice on its own (e.g. asm (".incbin")).
+COREBOOT_EXPORTS += CCACHE_EXTRAFILES
+
#######################################################################
# root rule to resolve if in build mode (ie. configuration exists)
real-target: $(obj)/config.h coreboot files_added
@@ -380,6 +384,7 @@ VBOOT_SOURCE ?= 3rdparty/vboot
CPPFLAGS_common += -I$(VBOOT_SOURCE)/firmware/include
CPPFLAGS_common += -include $(src)/include/kconfig.h
CPPFLAGS_common += -I3rdparty
+CPPFLAGS_common += -D__BUILD_DIR__=\"$(obj)\"
CFLAGS_common += -pipe -g -nostdinc -std=gnu11
CFLAGS_common += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes