[Bug libffi/48944] build error: "libffi has not been ported to avr-unknown-none."

["joseph at codesourcery dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48944

--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-05-11 13:08:05 UTC ---
On Wed, 11 May 2011, gjl at gcc dot gnu.org wrote:

> I followed the recommendations in "Optimize disk usage" of
> 
> http://gcc.gnu.org/wiki/SvnSetup
> 
> and applied it to the following directories:
> 
> libada gnattools gcc/ada gcc/testsuite/ada
> libstdc++-v3 libjava libgfortran libgo
> gcc/java gcc/go
> 
> So the new configure setup don't support mapping non-needed subdirs to emptydir
> as the previous configure.

Indeed, if you're removing front end directories you'll need to deal with 
removing library directories as well.

> Is there a list of compatible directory sets that can be used according to
> "Optimize disk usage"?

Not that I know of.  I think that disk usage optimization is pretty 
obsolete by now (and we similarly ought to eliminate the separate 
release/snapshot tarballs for particular languages, just having the main 
monolithic one) - and there are other ways removing front end directories 
could break things.