makefile: klayout relative path fix

This passed under the radar in ORFS that has WORK_HOME=FLOW_HOME,
but that's not the case for private repositories using ORFS,
either through make or bazel-orfs

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/Makefile

@@ -219,7 +219,7 @@ $(OBJECTS_DIR)/klayout.lyt: $(KLAYOUT_TECH_FILE) $(OBJECTS_DIR)/klayout_tech.lef
 .PHONY: do-klayout
 do-klayout:
 ifeq ($(KLAYOUT_ENV_VAR_IN_PATH),valid)
-	SC_LEF_RELATIVE_PATH="$$\(env('FLOW_HOME')\)/$(shell realpath --relative-to=$(FLOW_HOME) $(SC_LEF))"; \
+	SC_LEF_RELATIVE_PATH="$(shell realpath --relative-to=$(RESULTS_DIR) $(SC_LEF))"; \
 	OTHER_LEFS_RELATIVE_PATHS=$$(echo "$(foreach file, $(OBJECTS_DIR)/klayout_tech.lef $(ADDITIONAL_LEFS),<lef-files>$$(realpath --relative-to=$(RESULTS_DIR) $(file))</lef-files>)"); \
 	sed 's,<lef-files>.*</lef-files>,<lef-files>'"$$SC_LEF_RELATIVE_PATH"'</lef-files>'"$$OTHER_LEFS_RELATIVE_PATHS"',g' $(KLAYOUT_TECH_FILE) > $(OBJECTS_DIR)/klayout.lyt
 else