Fixes test subobj6.test and PR automake/160: * tests/Makefile.am (XFAIL_TESTS): Removed subobj6.test. * compile.am (mostlyclean-compile): Added MOSTLYRMS. (distclean-compile): Added DISTRMS. * tests/subobj6.test (wish_SOURCES): Updated to reflect `mostlyclean' use; added test for non-subdir case. * automake.in (compile_clean_files): New global. (MOSTLY_CLEAN, DIST_CLEAN): New constants. (initialize_per_input): Initialize compile_clean_files. (handle_single_transform_list): Set compile_clean_files entries. (handle_compile): Handle compilation cleanups.