macro_name IBM_XLC binary_name xlC compile_option "-c " output_to_option "-o " add_include_dir_option -I add_lib_dir_option -L add_lib_option -l lib_opt_flags "-O2" app_opt_flags "-O2" lang_flags "" debug_flags -g no_debug_flags "" makefile_style gmake cellppu -> "-qarch=cell" ppc970 -> "-qarch=ppc970" power4 -> "-qarch=pwr4" power5 -> "-qarch=pwr5" default -> "$(CXX) -qmkshrobj"