configure.host: Delete file.

2002-06-18  Phil Edwards  <pme@gcc.gnu.org>

	* configure.host:  Delete file.
	* configure.target:  More documentation.  Factor out common parts of
	script into "intelligent" settings about defaults.  Remove redundancy.

	* acinclude.m4:  Update comments.  Do not call configure.host.
	(GLIBCPP_ENABLE_SYMVERS):  If disabled, do not bother checking for
	libgcc_s.
	* configure.in:  Slight reformatting, more comments.  Factor out
	"config/" from all the directories.
	* docs/html/17_intro/porting.texi:  Update and expand.
	* testsuite/Makefile.am (AM_RUNTESTFLAGS):  Move empty setting
	from configure.host.

	* aclocal.m4, configure, docs/html/17_intro/porting.html,
	testsuite/Makefile.in:  Regenerate.

From-SVN: r54757