acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Add a function to the test code compiled with -ffunction-sections -fdata-sections.

2007-05-11  Benjamin Kosnik  <bkoz@redhat.com>

	* acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Add a function
	to the test code compiled with -ffunction-sections -fdata-sections.
	* configure: Regenerate.

	* testsuite/22_locale/ctype/scan/wchar_t/1.cc: Remove
	_GLIBCXX_USE_WCHAR_T guards as surpufulous.
	
	* testsuite/20_util/make_signed/requirements/typedefs-1.cc: Add
	_GLIBCXX_USE_WCHAR_T guards.	
	* testsuite/20_util/make_signed/requirements/typedefs-2.cc: Same.
	* testsuite/20_util/make_unsigned/requirements/typedefs-1.cc: Same.
	* testsuite/20_util/make_unsigned/requirements/typedefs-2.cc: Same.

	* testsuite/21_strings/char_traits/requirements/wchar_t/typedefs.cc: 
	Add.
	* testsuite/21_strings/char_traits/typedefs/char/1.cc: Move...
	* testsuite/21_strings/char_traits/requirements/char/typedefs.cc: 
	...here.
	* testsuite/21_strings/char_traits/typedefs: Remove.
	* testsuite/21_strings/char_traits/typedefs/char: Remove.

From-SVN: r124772