diff --git a/make/rules.mk b/make/rules.mk
index 5da344f0..084ea974 100644
--- a/make/rules.mk
+++ b/make/rules.mk
@@ -125,6 +125,26 @@ echo-libpath:
 	@echo LD_LIBRARY_PATH = $(LD_LIBRARY_PATH)
 	@echo NEW_LD_LIB_PATH = $(NEW_LD_LIB_PATH)
 
+
+echo-modules:
+	@echo "USERVER          : $(USERVER_DIR)"
+	@echo "XCHANGE          : $(XCHANGE_DIR)"
+	@echo "FEEDFS_UTILS     : $(FEEDFS_UTILS_DIR)"
+	@echo "FEEDFS           : $(FEEDFS_DIR)"
+	@echo "DSPCD            : $(DSPCD_DIR)"
+	@echo "DSPROUT          : $(DSPROUT_DIR)"
+	@echo "DSPIDER_SHARED   : $(DSPIDER_SHARED_DIR)"
+	@echo "BTOOLS           : $(BTOOLS_DIR)"
+	@echo "CCONSOLE         : $(CCONSOLE_DIR)"
+	@echo "JACKJART         : $(JACKJART_DIR)"
+	@echo "JACKRTAI         : $(JACKRTAI_DIR)"
+	@echo "JACKDUMMY        : $(JACKDUMMY_DIR)"
+	@echo "ALSART           : $(ALSART_DIR)"
+	@echo "DSPFS            : $(DSPFS_DIR)"
+	@echo "YTOOLS           : $(YTOOLS_DIR)"
+	@echo "SCOPE_CASMIX     : $(SCOPE_CASMIX_DIR)"
+
+
 trace-marks:
 	for f in $(ALL_CPP); do \
 		sed 's/^{$$/{_/' $$f > $$f.rep ;\