* configure.ac (i[[3456789]]86-*-msdosdjgpp*): Don't disable

	libffi on host.
	(x86_64-*-mingw*, i[[3456789]]86-*-mingw32*): Don't disable newlib
	on host.
	(c54x*-*-* | tic54x-*-*): Don't disable newlib on host.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171603 138bc75d-0d04-0410-961f-82ee72b054a4