2010-05-19  Richard Guenther  <rguenther@suse.de>

	* doc/invoke.texi (-fwhopr): Document new optional jobs argument.
	* common.opt (fwhopr=): New.
	* opts.c (common_handle_option): Handle OPT_fwhopr.
	* gcc.c (LINK_COMMAND_SPEC): Pass fwhopr*.
	* collect2.c (main): Match -fwhopr*.
	* lto-wrapper.c (run_gcc): Handle jobs argument of -fwhopr.
	Execute ltrans stage in parallel when jobs is bigger than 1.

From-SVN: r159573