message: Travis-proof make clean
diff: @@ -517,8 +517,9 @@ $(ALL_CLEAN_SUBDIRS):
  $(MAKE) -C $(BLD)$(@D) $(@F)
  clean: $(addsuffix /clean,$(EM_DIRS) $(TEST_DIRS))
  - rm -f $(addprefix $(BLD),$(foreach d,$(DIRS),$(d)/*{.o,~}) \
  - *~ libmfem.* deps.mk)
  + rm -f $(addprefix $(BLD),$(foreach d,$(DIRS),$(d)/*.o))
  + rm -f $(addprefix $(BLD),$(foreach d,$(DIRS),$(d)/*~))
  + rm -f $(addprefix $(BLD),*~ libmfem.* deps.mk)
  distclean: clean config/clean doc/clean
  rm -rf mfem/
  