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libcpp/ * directives-only.c: New file. * internal.h (struct _cpp_dir_only_callbacks): New. (_cpp_preprocess_dir_only): New function. * directives.c (_cpp_handle_directive): Check directives_only before disabling execution of indented directives. * files.c (_cpp_stack_file): Add directives_only check. * include/cpplib.h (struct cpp_options): Add directives_only. (cpp_init_special_builtins): New function. * init.c (cpp_init_special_builtins): New function. (cpp_init_builtins): Move builtin_array initialization to cpp_init_special_builtins. (post_options): Check directives_only before setting pfile->state.prevent_expansion = 1. * macro.c (_cpp_builtin_macro_text): Print an error if __COUNTER__ is expanded inside a directive while -fdirectives-only is enabled. * Makefile.in (libcpp_a_OBJS): Add directives-only.o. (libcpp_a_SOURCES): Add directives-only.c. gcc/ * c-ppoutput.c (print_lines_directives_only): New function. (scan_translation_unit_directives_only): New function. (preprocess_file): Add call to scan_translation_unit_directives_only. * c-opts.c (c_common_handle_option): Add OPT_fdirectives_only. (sanitize_cpp_opts): Add default flag_dump_macros setting for -fdirectives-only. Add errors for -fdirectives-only conflict with -Wunused-macros and -traditional. (finish_options): Add builtin macro initialization for -fdirectives-only + -fpreprocessed. * c.opt (fdirectives-only): New. * doc/cppopts.texi (fdirectives-only): New. gcc/testsuite/ * gcc.dg/cpp/counter-2.c: New test. * gcc.dg/cpp/counter-3.c: New test. * gcc.dg/cpp/dir-only-1.c: New test. * gcc.dg/cpp/dir-only-1.h: New file. * gcc.dg/cpp/dir-only-2.c: New test. * gcc.dg/cpp/dir-only-3.c: New test. * gcc.dg/cpp/dir-only-3a.h: New file. * gcc.dg/cpp/dir-only-3b.h: New file. * gcc.dg/cpp/dir-only-4.c: New test. * gcc.dg/cpp/dir-only-5.c: New test. * gcc.dg/cpp/dir-only-6.c: New test. From-SVN: r127066
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