http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48378
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-04-01 08:36:20 UTC --- Building in a separate dir has the advantage you don't need to make clean, you just remove the whole dir and start with an empty dir again. I'm not sure 'make distclean' helps, does it make any difference if you start again extracting the source tarbal into an empty dir and build in an empty dir? If not please provide your exact configure command (just ../gcc-4.6.0/configure?) and the error.
