[Makefile] update openlane Makefile
diff --git a/openlane/Makefile b/openlane/Makefile
index b556fb5..05c39e5 100644
--- a/openlane/Makefile
+++ b/openlane/Makefile
@@ -63,13 +63,13 @@
@echo "Please export OPENLANE_ROOT"
@exit 1
endif
- git clone https://github.com/efabless/openlane.git --branch=master $(OPENLANE_ROOT) && \
+ git clone https://github.com/efabless/openlane.git --branch=$(OPENLANE_TAG) --depth=1 $(OPENLANE_ROOT) && \
cd $(OPENLANE_ROOT) && \
make openlane
FORCE:
-clean:
+clean:
@echo "Use clean_all to clean everything :)"
clean_all: $(CLEAN)