Fix Makefile dependencies if FT2232SPI is not selected
.features was always regenerated in that case, triggering whole-project
recompiles even if nothing changed.
Corresponding to flashrom svn r844.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Sean Nelson <audiohacked@gmail.com>
diff --git a/Makefile b/Makefile
index d2f04ec..423e315 100644
--- a/Makefile
+++ b/Makefile
@@ -136,8 +136,8 @@
NEED_PCI := yes
endif
-FTDILIBS := $(shell pkg-config --libs libftdi 2>/dev/null || printf "%s" "-lftdi -lusb")
ifeq ($(CONFIG_FT2232SPI), yes)
+FTDILIBS := $(shell pkg-config --libs libftdi 2>/dev/null || printf "%s" "-lftdi -lusb")
# This is a totally ugly hack.
FEATURE_CFLAGS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "-D'FT2232_SPI_SUPPORT=1'")
FEATURE_LIBS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "$(FTDILIBS)")
@@ -280,7 +280,8 @@
@rm -f .featuretest.c .featuretest
else
features: compiler
- @echo "FEATURES := yes" > .features
+ @echo "FEATURES := yes" > .features.tmp
+ @$(DIFF) -q .features.tmp .features >/dev/null 2>&1 && rm .features.tmp || mv .features.tmp .features
endif
install: $(PROGRAM)