Re: [PATCH, libjava/classpath]: Fix overriding recipe for target 'gjdoc' build warning

[Andrew Haley <aph@redhat.com>]

On 20/08/15 09:24, Matthias Klose wrote:
> On 08/20/2015 06:36 AM, Tom Tromey wrote:
>> Andrew> No, it isn't. It's still a necessity for initial bootstrapping of
>> Andrew> OpenJDK/IcedTea.
>>
>> Andrew Haley said the opposite here:
>>
>> https://gcc.gnu.org/ml/gcc-patches/2015-08/msg00537.html
> 
> if you need bootstrapping OpenJDK 6 or OpenJDK 7, then having gcj
> available for the target platform is required. Starting with OpenJDK
> 8 you should be able to cross build OpenJDK 8 with an OpenJDK 8
> available on the cross platform.  It might be possible to cross
> build older OpenJDK versions, but this usually is painful.

Sure, but we don't need GCJ going forward.  I don't think that there
are any new platforms to which OpenJDK has not been ported which will
require GCJ to bootstrap.  And even if there are, anybody who needs to
do that can (and, indeed, should) use an earlier version of GCJ.  It's
not going to go away; it will always be in the GCC repos.  And because
newer versions of GCC may break GCJ (and maybe OpenJDK) it makes more
sense to use an old GCC/GCJ for the bootstrapping of an old OpenJDK.

Andrew.