gengtype improvements for plugins. patch 1/N

[Basile Starynkevitch]

There was a one letter typo in the patch (for the gengtype_long_options
array, line "version", short letter).

So here is the latest and hopefully final version of the patch.

the patch relative to trunk is file patch01ter-r163612-progarg.diff

the gcc/ChangeLog entry is  patch01ter-r163612-progarg.ChangeLog

Ok for trunk?

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
8, rue de la Faiencerie, 92340 Bourg La Reine, France
*** opinions {are only mine, sont seulement les miennes} ***
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2010-08-29  Jeremie Salvucci  <jeremie.salvucci@free.fr>,
	    Basile Starynkevitch  <basile@starynkevitch.net>

	* gengtype.c: Added #include of getopt.h & version.h. Moved the
	include of gengtype.h

	(lang_bitmap, struct outf, outf_p, output_file)
	(inputlist, output_files, header_file, plugin_output_filename)
	(srcdir, srcdir_len, do_dump): definitions moved to gengtype.c,
	and variables declared here.
	(read_state_filename, write_state_filename, do_debug): New
	declarations.

	(gengtype_long_options): Added new static variable.

	(print_usage): Added new function.
	(print_version): Added new function.
	(parse_program_options): Added new function.

	(main): use parse_program_options, cleaned up a bit. Added stubs
	for read & write of state.

	* gengtype.h: Moved many things from gengtype.c to here.
	(outf, outf_p, output_files, header_file, srcdir, srcdir_len)
	(do_dump): Moved variables from gengtype.c

	(read_state_filename, write_state_filename, do_debug): Added variables.
	(dbgprintf): Added conditional macro.

	* Makefile.in (build/version.o): Added target, use BUILD_CPPFLAGS
	& $(COMPILER_FOR_BUILD)

	(build/gengtype): Link with it.
	(s-gtype): Run gengtype with new program arguments.