X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/60d119d11e6a12c40d57dc4efeaeaa89b8c3de81..01c56fcc5a201ed84f10f427adf13a1edf688b20:/include/scan.mk?ds=inline

diff --git a/include/scan.mk b/include/scan.mk
index 7725fc713..ff23e0961 100644
--- a/include/scan.mk
+++ b/include/scan.mk
@@ -24,10 +24,18 @@ tmp/.$(SCAN_TARGET):
 	@($(call progress,Collecting $(SCAN_NAME) info: done))
 	@echo
 
+ifneq ($(SCAN_EXTRA),)
+SCAN_STAMP=tmp/info/.scan-$(SCAN_TARGET)-$(shell ls $(SCAN_EXTRA) 2>/dev/null | (md5sum || md5) 2>/dev/null | cut -d' ' -f1)
+$(SCAN_STAMP):
+	rm -f tmp/info/.scan-$(SCAN_TARGET)-*
+	mkdir -p $(shell dirname $@)
+	touch $@
+endif
+
 define scanfiles
 $(foreach FILE,$(SCAN),
   tmp/.$(SCAN_TARGET): tmp/info/.$(SCAN_TARGET)-$(FILE) FORCE
-  tmp/info/.$(SCAN_TARGET)-$(FILE): $(SCAN_DEPS) $(SCAN_DIR)/$(FILE)/Makefile
+  tmp/info/.$(SCAN_TARGET)-$(FILE): $(SCAN_DEPS) $(SCAN_DIR)/$(FILE)/Makefile $(SCAN_STAMP)
 	{ \
 		$$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(FILE)) \
 		echo Source-Makefile: $(SCAN_DIR)/$(FILE)/Makefile; \