Re: OpenJDK support

[ludo@gnu.org (Ludovic Courtès)]

Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> skribis:

> pjotr Prins <pjotr.public12@thebird.nl> writes:
>
>> To support the JVM we'll need to add the openjdk.
>>
>> Having a look at it I think it is doable. Only problem is that the
>> java compiler needs to be bootstrapped with itself. 
>>
>> In Nix they create a binary blob to bootstrap:
>>
>>     let
>>       # !!! These should be on nixos.org
>>       src = if glibc.system == "x86_64-linux" then
>>         fetchurl {
>>           url = http://tarballs.nixos.org/openjdk-bootstrap-x86_64-linux-2012-08-2
>>     4.tar.xz;
>>           sha256 = "0gla9dxrfq2w1hvgsnn8jg8a60k27im6z43a6iidi0qmwa0wah32";
>>         }
>>       else if glibc.system == "i686-linux" then
>>         fetchurl {
>>           url = http://tarballs.nixos.org/openjdk-bootstrap-i686-linux-2012-08-24.
>>     tar.xz;
>>           sha256 = "184wq212bycwbbq4ix8cc6jwjxkrqw9b01zb86q95kqpa8zy5206";
>>         }
>>       else throw "No bootstrap for system";
>>     in
>>
>> How do we go about this one?
>
>
> We already have a JDK provided by the “jdk” output of the “icedtea”
> packages.  “IcedTea” is the name of the project that provides a heavily
> patched framework allowing us to build the (patched) OpenJDK sources
> with free software only.  Building the vanilla OpenJDK appparently isn’t
> that easy – and not really necessary since we have the IcedTea-ified
> version.
>
> We are bootstrapping with GCJ.

And kudos to you Ricardo for doing the right thing.  It’s much more
confidence-inspiring than the above snippet.  :-)

Ludo’.