Merge pull request #2646 from Pinata-Consulting/makefile-run-make-dirs

makefile: run can need any of these folders

Author: maliberty

flow/Makefile

@@ -1053,6 +1053,7 @@ klayout:
 
 .phony: run
 run:
+	@mkdir -p $(RESULTS_DIR) $(LOG_DIR) $(REPORTS_DIR) $(OBJECTS_DIR)
 	($(OPENROAD_CMD) -no_splash $(if $(filter %.py,$(RUN_SCRIPT)),-python) $(RUN_SCRIPT) 2>&1 | tee $(abspath $(LOG_DIR)/run.log))
 
 # Utilities