2005-03-23  Benjamin Kosnik  <bkoz@redhat.com>

	* acinclude.m4: Adjust so that _GLIBCXX_USE_C99 implies
	using _GLIBCXX_USE_C99_COMPLEX, _GLIBCXX_USE_C99_MATH, and
	_GLIBCXX_USE_C99_WCHAR.
	Remove GLIBCXX_ENABLE_C_MBCHAR, consolidate in GLIBCXX_ENABLE_C99
	and GLIBCXX_ENABLE_WCHAR_T.
	Take C99 bits from GLIBCXX_CHECK_WCHAR_T_SUPPORT and put in
	GLIBCXX_ENABLE_C99.
	Change remaining parts of GLIBCXX_CHECK_WCHAR_T_SUPPORT to
	GLIBCXX_CHECK_ICONV_SUPPORT.
	* configure.ac: Remove GLIBCXX_ENABLE_C_MBCHAR, use
	GLIBCXX_CHECK_ICONV_SUPPORT and GLIBCXX_ENABLE_WCHAR_T.
	* crossconfig.m4: Same.
	* acconfig.h: Same, adjust comments.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* docs/html/configopts.html: Change --enable-c-mbchar to
	--enable-wchar_t.

	* config/locale/gnu/c++locale_internal.h: Guard wide functions
	with _GLIBCXX_USE_WCHAR_T.
	* include/c_std/std_cwctype.h: Alphabetize, remove duplicates.
	* include/c_std/std_cstdio.h: Spacing.

	* config/locale/gnu/c_locale.h: Tweaks for unused warnings.
	* src/debug.cc: Same.

From-SVN: r96981