2010-07-23  Richard Guenther  <rguenther@suse.de>

	PR lto/43071
	* gcc.c (LINK_COMMAND_SPEC): Filter out -fcompare-debug
	for -flto and -fwhopr.

	* g++.dg/lto/20100723-1_0.C: New testcase.

From-SVN: r162481