http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44959
--- Comment #36 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-09-14 13:51:58 UTC --- > --- Comment #30 from Hin-Tak Leung <htl10 at users dot sourceforge.net> > 2012-09-01 08:18:06 UTC --- > I commented out gcc-4.7.1/config/bootstrap-debug.mk : > > #STAGE2_CFLAGS += -gtoggle > > and 4.7.1 passed. > > this seems likely the cause - -gtoogle was introduced in 4.5.x. I am going to > try going backwards to see whether this will have the older versions pass. config/bootstrap-debug.mk isn't used by default, you need to enable it with --with-build-config. > Two curiosity: > - how did I get 4.6.1 to pass, once? No idea, perhaps you `forgot' to enable bootstrap-debug.mk? > - why Rainer's system isn't similiarly affected? Because I'm using default configure options as far as possible, as I had suggested to you several times: start with the basics and if this works, continue from there. Rainer