message: Fix tests/unit/makefile when MFEM_DIR is set
diff: @@ -69,7 +69,7 @@ $(OBJECT_FILES): %.o: $(SRC)%.cpp $(HEADER_FILES) $(CONFIG_MK)
  comma=,
  define sedov_tests
  sedov_tests_$(1): SEDOV_TESTS_FLAGS=-DMFEM_SEDOV_TESTS -DMFEM_SEDOV_DEVICE='"$(3)"'
  -sedov_tests_$(1): $$(SRC)unit_test_main.o $$(SEDOV_$(2)_OBJ_FILES) \
  +sedov_tests_$(1): unit_test_main.o $$(SEDOV_$(2)_OBJ_FILES) \
  $$(MFEM_LIB_FILE) $$(CONFIG_MK) $$(DATA_DIR)
  $$(CCC) $$(SRC)unit_test_main.o $$(SEDOV_$(2)_OBJ_FILES) $$(INCLUDES) \
  $$(MFEM_LINK_FLAGS) $$(MFEM_LIBS) -o $$(@)
  