[kaffe] configure command with '-C' option

[Dalibor Topic]

Kiyo Inaba wrote:

Hi Kiyo,

>But right now, there are four sub-configure in 'kaffe/kaffevm
>/boehm-gc/boehm', 'external/gcc/fastjar', 'libltdl' and 'libraries
>/javalib/external/classpath', and do you mean this KAFFE_CFLAGS
>trick is just needed for classpath?
>
>  
>
I believe that was the case back then, yeah.

There is also the external/gcc/zlib code, that should be removed, and we 
could slash gjdoc,
and other merged in code as well.

>>Would cross-compiling classpath first, and then kaffe on top of the
>>cross-compiled classpath build
>>work for you? I think that's how it works for JamVM & Cacao, and it
>>seems to work well, judging
>>by how far in terms of platform support they've come.
>>    
>>
>
>It is something what Jim said as 'staying small' or smaller approach.
>Theoretically, if entire build can be made with cross compiling, just
>making sub part of the entire build can also be made. Of course I've
>not yet tested. But (if I understand correctly), cross-compilation
>should not be the issue, but just 'separate compilation' should be
>the matter you want mention, am I right?
>  
>
Yeah, basically we'd move away from building everything at once (and 
having to merge
all the external code in continuously, and deal with it in our build 
system), to a model where
cross-compiling kaffe is a sequence of separate compilations to be 
performed in a specific order
(which is what our current build system does, implicitely).

>Anyway, I try to separate classpath build from the entire kaffe
>build, and let you know when finish.
>  
>
Great, thank you!

>By the way, I personally prefer current approach of 'simply type
>configure once, make once, and make check (to see whether kaffe
>still works)'...
># Of course, if it does not introduce any further headache ;-)
>  
>
I think the split approach has its advantages as well: it reduces the 
turn-around times for
VM builds, as you'd only need to rebuild the VM, rather than the VM + 
class library.

cheers,
dalibor topic