* c-decl.c (diagnose_mismatched_decls, grokdeclarator, grokfield)
	(finish_struct): Refer to C11 in comments.  Use flag_isoc11.
	* c-parser.c (c_parser_static_assert_declaration)
	(c_parser_static_assert_declaration_no_semi, c_parser_declspecs)
	(c_parser_alignas_specifier, c_parser_alignof_expression): Refer
	to C11 in comments.  Use flag_isoc11.
	* c-typeck.c (comptypes_check_different_types): Refer to C11 in
	comment.
	* doc/cpp.texi (Overview): Refer to -std=c11 instead of -std=c1x.
	* doc/cppopts.texi (-std=c11, -std=gnu11): Document in preference
	to -std=c1x and -std=gnu1x.
	* doc/extend.texi (Inline, Alternate Keywords, Other Builtins)
	(__builtin_complex, Unnamed Fields): Refer to -std=c11 and C11
	instead of -std=c1x and C1X.
	* doc/invoke.texi (-std=c11, -std=iso9899:2011): Document in
	preference to -std=c1x.
	(-std=gnu11): Document in preference to -std=gnu1x.
	* doc/standards.texi: Document C11 instead of C1X.  Document C11
	as actual standard.  Document headers required from freestanding
	C11 implementations.
	* ginclude/float.h, ginclude/stddef.h: Test __STDC_VERSION__ >=
	201112L for C11.  Update comments to refer to C11.

gcc/c-family:
	* c-common.c (flag_isoc99): Update comment to refer to C11.
	(flag_isoc1x): Change to flag_isoc11.
	* c-common.h (flag_isoc99): Update comment to refer to C11.
	(flag_isoc1x): Change to flag_isoc11.
	* c-cppbuiltin.c (cpp_atomic_builtins): Change comment to refer to
	C11.
	* c-opts.c (set_std_c1x): Change to set_std_c11.
	(c_common_handle_option): Handle OPT_std_c11 and OPT_std_gnu11.
	Call set_std_c11.
	(set_std_c89, set_std_c99, set_std_c11): Use flag_isoc11.
	(set_std_c1): Use CLK_STDC11 and CLK_GNUC11.
	* c.opt (std=c1x): Change to std=c11.  Document as non-draft
	standard.
	(std=c1x, std=iso9899:2011): Add as aliases of std=c11.
	(std=gnu1x): Change to std=gnu11.  Refer to non-draft standard.
	(std=gnu1x): Make alias of std=gnu11.

gcc/testsuite:
	* gcc.dg/c11-version-1.c, gcc.dg/c11-version-2.c,
	gcc.dg/c94-version-1.c, gcc.dg/c99-version-1.c,
	gcc.dg/gnu11-version-1.c: New tests.

libcpp:
	* include/cpplib.h (CLK_GNUC1X): Change to CLK_GNUC11.
	(CLK_STDC1X): Change to CLK_STDC11.
	* init.c (lang_defaults): Update comments.
	(cpp_init_builtins): Update language tests.  Use 201112L for C11
	__STDC_VERSION__.

From-SVN: r182551