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)-*
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)-*