Merge pull request #1309 from Pinata-Consulting/makefile-missing-sdc-dependency

makefile: add $(SDC_FILE) to 1_1_yosys.v dependencies list

Author: maliberty

flow/Makefile

@@ -406,7 +406,7 @@ ifeq ($(SYNTH_HIERARCHICAL), 1)
 $(RESULTS_DIR)/1_1_yosys.v: $(SYNTH_STOP_MODULE_SCRIPT)
 endif
 
-$(RESULTS_DIR)/1_1_yosys.v $(RESULTS_DIR)/1_synth.sdc &: $(DONT_USE_LIBS) $(WRAPPED_LIBS) $(DONT_USE_SC_LIB) $(DFF_LIB_FILE) $(VERILOG_FILES) $(CACHED_NETLIST) $(LATCH_MAP_FILE) $(ADDER_MAP_FILE)
+$(RESULTS_DIR)/1_1_yosys.v $(RESULTS_DIR)/1_synth.sdc &: $(DONT_USE_LIBS) $(WRAPPED_LIBS) $(DONT_USE_SC_LIB) $(DFF_LIB_FILE) $(VERILOG_FILES) $(CACHED_NETLIST) $(LATCH_MAP_FILE) $(ADDER_MAP_FILE) $(SDC_FILE)
 	mkdir -p $(RESULTS_DIR) $(LOG_DIR) $(REPORTS_DIR)
 	($(TIME_CMD) $(YOSYS_CMD) $(YOSYS_FLAGS) -c $(SYNTH_SCRIPT)) 2>&1 | tee $(LOG_DIR)/1_1_yosys.log
 	cp $(SDC_FILE) $(RESULTS_DIR)/1_synth.sdc