I committed this patch to gold.  This tweaks yesterday's patch to only
lock the target selector if necessary, avoiding a bunch of lock calls in
a large link.

I also committed a comment fix, without a ChangeLog entry.

Ian


2009-03-24  Ian Lance Taylor  <iant@google.com>

	* target-select.cc (instantiate_target): Don't acquire the lock if
	the instantiated_target_ field has already been set.