*: Add Doxygen hooks.

2001-09-27  Phil Edwards  <pme@gcc.gnu.org>

	* include/std/*:  Add Doxygen hooks.
	* docs/doxygen/Intro.3:  New file, general intro to the man pages.
	* docs/doxygen/mainpage.doxy:  Formatting tweaks.  List our own links
	rather than using a generated index.
	* docs/doxygen/user.cfg.in:  Disable the index, enable man pages.
	* docs/doxygen/run_doxygen:  Massage the generated man pages, using...
	* docs/doxygen/stdheader.cc:  ...this new file.

From-SVN: r45850