cfenv: New.

2006-01-26  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/cfenv: New.
	* include/Makefile.am: Add.
	* testsuite/tr1/8_c_compatibility/cfenv/functions.cc: New.
	* testsuite/tr1/8_c_compatibility/cfenv/types.cc: Likewise.
	* acinclude.m4 ([GLIBCXX_CHECK_C99_TR1]): Add <fenv.h> checks.
	* docs/html/ext/tr1.html: Update; add note.
	* include/Makefile.in: Regenerate.
	* config.h.in: Likewise.
	* configure: Likewise.	

	* testsuite/tr1/8_c_compatibility/complex/functions.cc: Tweak.
	* testsuite/tr1/8_c_compatibility/cctype/functions.cc: Likewise.

	* docs/html/faq/index.html: Fix link to tr1.html text; fix
	formatting.

From-SVN: r110252