* doc/install.texi (Configuration): Fix markup.

	* doc/install.texi (Configuration): Fix markup.
	(Specific, i?86-*-udk): Likewise.
	(Specific, alpha*-dec-osf*): Warn against --with-gnu-as,
	--with-gnu-ld.
	Document --enable-threads and --enable-libgcj status.
	(Specific, mips-sgi-irix*): Canonicalize triples.
	(Specific, mips-sgi-irix5): Warn about problems with this config.
	Mention required GNU as patch.
	Native assembler problems are fixed.
	(Specific, mips-sgi-irix6): Update O32 ABI support status.
	Document --enable-threads and --enable-libgcj status.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44599 138bc75d-0d04-0410-961f-82ee72b054a4