Building on Ubuntu -- what GCC sources to use?

[Joseph Rushton Wakeling]

On 05/31/2013 06:47 PM, Iain Buclaw wrote:
> Implementation-wise, yes (over 6000 line changes and counting, and we
> are still on the same front-end version)...
> Testsuite and stability-wise.  Nothing broken, infact there are more
> fixes now than before!

Any advice on running the test suite?  I found that it exited with Errors 1 and
2 if make check-d was run with the -j option; running without, it started and
then output nothing (though a look at top showed a fair amount of different
stuff running -- expect, cc1d, other things).