configure.in: Turn mt-linux into mt-gnu.

configure.in: Turn mt-linux into mt-gnu.

ChangeLog:

2004-08-01  Robert Millan  <robertmh@gnu.org>

	* configure.in: Turn mt-linux into mt-gnu. Use mt-gnu and enable
	libmudflap for all GNU-based systems (with Glibc).
	* configure: Regenerate.

config/ChangeLog:

2004-08-01  Robert Millan  <robertmh@gnu.org>

	* mt-linux: Rename to ...
	* mt-gnu: ... this.

libffi/ChangeLog:

2004-08-01  Robert Millan  <robertmh@gnu.org>

	* configure.ac: Detect knetbsd-gnu and kfreebsd-gnu.
	* configure: Regenerate.

From-SVN: r85501