* hooks.c (hook_int_size_t_constcharptr_int_0): New.
	* hooks.h (hook_int_size_t_constcharptr_int_0): New.
	* langhooks-def.h (lhd_decode_option, LANG_HOOKS_DECODE_OPTION): Die.
	(LANG_HOOKS_HANDLE_OPTION, LANG_HOOKS_INITIALIZER): Update.
	* langhooks.c (lhd_decode_option): Remove.
	* langhooks.h (struct lang_hooks): Remove decode_option.
	* opts.c (handle_option): No longer use decode_option.
java:
	* Make-lang.in: Handle mostlyclean.
treelang:
	* Make-lang.in: Update for option handling.
	* lang.opt: New.
	* tree1.c: Include opts.h and t-options.h.
	(treelang_decode_option): Remove.
	(treelang_handle_option): New.
	* treetree.c (LANG_HOOKS_DECODE_OPTION): Remove.
	(LANG_HOOKS_HANDLE_OPTION): Override.
	* treetree.h (treelang_decode_option): Remove.
	(treelang_handle_option): New.

From-SVN: r67799