* configure.ac (build_tools): Remove build-byacc.

	* configure.ac (build_tools): Remove build-byacc.
	(host_libs): Remove mmalloc.
	(host_tools): Remove byacc make patch prms send-pr ash bash bzip2
	autoconf automake libtool diff rcs fileutils shellutils time
	textutils wdiff find uudecode hello tar gzip indent recode release
	sed perl gawk findutils gettext zip.
	(libgcj): Remove target-qthreads.
	(target_tools): Remove target-examples target-gperf.
	(YACC): Don't handle building byacc.
	* configure: Regenerate.
	* Makefile.def (ash, autoconf, automake, bash, byacc, bzip2, diff,
	dosutils, examples, fileutils, find, findutils, gawk, gettext,
	gnuserv, gperf, gzip, hello, indent, libtool, make, mmalloc,
	patch, perl, prms, qthreads, rcs, recode, release, sed, send-pr,
	shellutils, tar, textutils, time, uudecode, wdiff, zip): Don't
	handle building components.
	* Makefile.in: Regenerate.