[Bug bootstrap/27963] [4.2 Regression] libjava fails to build if it isn't built by default

["ro at techfak dot uni-bielefeld dot de" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from ro at techfak dot uni-bielefeld dot de  2006-06-08 20:23 -------
Subject: Re:  [4.2 Regression] libjava fails to build if it isn't built by
default

ayers at gcc dot gnu dot org writes:

> I followed the advice given here:
> 
> http://gcc.gnu.org/ml/gcc-patches/2006-05/msg00886.html

As this PR demonstrates, this advice was wrong wrt. to adding boehm-gc to
noconfigdirs, as this will break any configuration where libjava just isn't
built by default.

> I believe "noconfigdir" is supposed to mean "not supported" so in this case the
> correct "patch" would be to remove tartget-boehm-gc if in fact it is supported
> by the platform, as we will later remove it again if it wasn't requested by
> libobjc and not needed by java.
> 
> If I get a get a list of targets for which I should re-enable target-boehm-gc
> (and possibly pre approval) I can certainly come up with a patch (it's just a
> matter of removing target-boehm-gc from the appropriate noconfigdir entry).

I fear this is the wrong way round: it shouldn't be necessary to unbreak
the affected targets one by one, but boehm-gc should only be included in
noconfigdirs if it is known not to work (which is what noconfigdirs is
for).

        Rainer


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27963