Add .o to clean target

src/mediators/Makefile

@@ -140,6 +140,7 @@ subdirs:
 clean: extraclean
 
 extraclean:
+	@rm -f *.o
 	@rm -f $(MOSSCO_LIBRARY_PATH)/libmossco_mediator.a
 	@rm -f $(MOSSCO_LIBRARY_PATH)/libxgridcoupler.a
 	@rm -f $(MOSSCO_LIBRARY_PATH)/libinoutcoupler.a

src/test/Makefile

@@ -110,5 +110,5 @@ clean: extraclean
 
 extraclean:
 	@- rm -f $(TESTS) PET*
-	@- rm -rf *.dSYM test_netcdf.nc
+	@- rm -rf *.dSYM test_netcdf.nc *.o