[Bug bootstrap/49555] libjava fails to configure if --enable-symvers=gnu or --enable-symvers=sun

["ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49555

--- Comment #9 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2011-07-01 14:07:55 UTC ---
> --- Comment #7 from Bryan Hundven <bryanhundven at gmail dot com> 2011-06-29 19:30:03 UTC ---
[...]
> So, Yann found that sh4 did not need this option anymore, and he has since
> removed the --enable-symvers option from the build:
>
> http://crosstool-ng.org/hg/crosstool-ng/rev/b24ead1a5947
>
> So now we just let gcc figure it out.

Excellent, thanks for pursuing this.

> As for the inconsistent check in libjava and the previous change to remove
> enable-symvers from ct-ng in mind, this can probably be resolved as invalid
> unless you'd like to just add gnu|sun to the
> libjava_cv_anon_version_script=yes;; case. (attaching patch to give an
> example).

I'll certainly have a look: perhaps this will prompt me to unify the
symbol versioning configure support across all gcc target libraries :-)

> wrt all of the extra configuration options, it would be very appreciated if in
> another thread we could discuss some of them. I'm sure a lot of the options we
> have for building binutils and gcc are ported forward from the older crosstool
> scripts and aren't needed anymore. My theory on that has been: if it ain't
> broke, don't fix it
> ...until now.

We can certainly do this, either in private mail or on some mailing list
(unless I don't have to subscribe to yet another one :-).

Thanks.
        Rainer