-sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f))))
+sourcefiles := $(if $(and $(SRCDIR),$(wildcard $(SRCDIR))),$(filter-out $(sourceincludes),$(patsubst ./%,%,$(shell $(FIND) $(foreach dir,$(SRCDIR),$(call quote,$(dir))) '(' $(FINDRULES) ')' -a -type f -a -print))))