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Re: [RFC] Replace Java with Go in default languages

On 11/13/2013 01:22 PM, Jakub Jelinek wrote:
> On Wed, Nov 13, 2013 at 02:01:52PM +0100, Richard Biener wrote:
>>>> Really?  Wouldn't it make more sense for people to check out what they
>>>> need?  Is this a mayor issue?
>>> It was one of the major complaints we received when dropping the
>>> split of the distributed tarballs, that is, no more gcc-core-4.8.2.tar.bz2.
>>> libjava is roughly half of the whole source tarball ...
>> Err, miscounted ;)  It's roughly half of the size of the gcc/ subdirectory.
> Well, for the size it might help stop including all the precompiled
> *.class/*.jar files in the repository, that is roughly half of
> libjava/, and only configuring java if everything is there to set up
> building the class files from source.  We are doing that for years
> on redhat branches (with the main intent to avoid just relying on
> binary blobs, but size reduction is a nice side-effect).
> I think all the prebuilt binary blobs (and generated headers) were added
> because java was an --enable-languages=all language and the maintainers
> didn't want to add burden of other prerequisities.

That's right.

> But, if we make it that java will not be configured unless you have
> those prerequisities, I don't see why we would need to include
> those.  For cross-compilers of course one will need the ecj jar file
> (target independent) and some java interpreter around, but it will
> be needed on the build box.

Yes, that's always been the gnarly problem when bootstrapping.  GCJ
has provided the only way that you can get Java on some targets,
because it's the only way to build a working Java that does not
require you already to have a working Java.


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