* Makefile.in: Update to use common.opt and lang_opt_files.
	(c-options.c, c-options.h): Remove.
	(options.c, options.h): Add.
	* c-opts.c: Include options.h not c-options.h.
	* common.opt: New file.
	* configure, configure.in: Add lang_opt_files.
	* opts.c: Include flags.h and diagnostic.h.
	(common_handle_option): New.
	(handle_option): Update to recognize common options and all
	language-dependent options.
	* opts.h (CL_F77, CL_JAVA, CL_ADA, CL_COMMON, CL_TREELANG): New.
	(struct cl_option): Make flags of type int.
	* opts.h: Flag option with front ends to which it applies.
	Handle duplicate options.
	* toplev.c (filename): Remove.
	(independent_decode_option): Don't handle filenames and -quiet.
	(process_options, do_compile): Update.
ada:
	* Make-lang.in: Update to use options.c and options.h.
	* misc.c: Include options.h not aoptions.h.
	(gnat_handle_option): Abort on unrecognized switch.
	(gnat_init_options): Request Ada switches.
cp:
	* Make-lang.in: Remove c-options.o.
f:
	* Make-lang.in: Update to use options.c and options.h.
	* top.c: Include options.h not f-options.h.
	(gnat_handle_option): Abort on unrecognized switch.
	(ffe_init_options): From com.c.  Request F77 options.
	(ffe_handle_options): Abort on unrecognized switch.
	* com.c (ffe_init_options): Move to top.c.
	* top.h (fee_init_options): New.
java:
	* Make-lang.in: Update to use options.c and options.h.
	* lang.c: Include options.h not j-options.h.
	(java_handle_option): Abort on unrecognized option.
	(java_init_options): Request Java switches.
treelang:
	* Make-lang.in: Update to use options.c and options.h.
	* tree1.c: Include options.h not t-options.h.
	(treelang_init_options): New.
	(treelang_handle_option): Abort on unrecognized switch.
	* treetree.c (LANG_HOOKS_INIT_OPTIONS): Override.
	* treetree.h (treelang_init_options): New.

From-SVN: r67941