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-rw-r--r--include/scan.mk10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/scan.mk b/include/scan.mk
index 7725fc713a..ff23e0961c 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; \