2012-05-11  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR 53063
gcc/
	* doc/options.texi (EnabledBy): Document
	* opts.c: Include opts.h and options.h before tm.h.
	(finish_options): Do not handle some sub-options here...
	(common_handle_option): ... instead call common_handle_option_auto here.
	* optc-gen.awk: Handle EnabledBy.
	* opth-gen.awk: Declare common_handle_option_auto.
	* common.opt (Wuninitialized): Use EnabledBy. Delete Init.
	(Wmaybe-uninitialized): Likewise.
        (Wunused-but-set-variable): Likewise.
        (Wunused-function): Likewise.
        (Wunused-label): Likewise.
        (Wunused-value): Likewise.
        (Wunused-variable): Likewise.
        * opt-read.awk: Create opt_numbers array.
ada/
	* gcc-interface/misc.c (gnat_parse_file): Move before ...
	(gnat_handle_option): ... this. Use handle_generated_option.
c-family/
	* c-opts.c (c_common_handle_option): Use handle_generated_option
	to enable sub-options.
fortran/
	* options.c: Include diagnostics.h instead of
	diagnostics-core.h.
	(set_Wall): Do not see warn_unused here.
	(gfc_handle_option): Set it here using handle_generated_option.

From-SVN: r187403