diff --git a/make/rules.mk b/make/rules.mk
index 67507e7d..04ddf8c6 100644
--- a/make/rules.mk
+++ b/make/rules.mk
@@ -184,8 +184,11 @@ else
 install_profile_path: $(INSTALLED_PROFILE_PATH_SCRIPT)
 endif
 
+#depend.mk: $(SRC_ALL_CPP)
+#	> $@ && makedepend -f depend.mk -- $(CPPFLAGS) $(DEPEND_CPPFLAGS) -- $(SRC_ALL_CPP) 2>&1 | sed '/non-portable whitespace/ d'
+
 depend.mk: $(SRC_ALL_CPP)
-	> $@ && makedepend -f depend.mk -- $(CPPFLAGS) $(DEPEND_CPPFLAGS) -- $(SRC_ALL_CPP) 2>&1 | sed '/non-portable whitespace/ d'
+	> $@ && gcc -M $(CPPFLAGS) $(DEPEND_CPPFLAGS) $(filter-out %.h,$(SRC_ALL_CPP)) -o $@
 
 depend: depend.mk