I have to agree. Use jikes and just recompile everything. I tried lots
of other hacks with makefiles a dep systems but the best way to make
sure it will work is to just recompile with jikes. I compile a project
with around 300 .java files and jikes rips through tham in a couple of
seconds.
I hope that helps
Mo DeJong
On Fri, 30 Jul 1999, Nelson Minar wrote:
> >>As soon as my application grow and more classes are created, I'm
> >>beginning to feel the weight of a full scale compilation (like 20
> >>seconds now, but it's increasing fast) even after I change 1 line of
> >>code in 1 class.
> >We use make to great advantage. Our system has ~1000 java files and
> >make reduces compile time dramatically. ( We use jikes, too, so that
> >helps. )
>
> I've found that with Jikes, it's best just to recompile everything.
>
> I have a Java system that's currently 280 .files, 36000 lines of code.
> It also links to 5 or 6 extra jar files. Using jikes, it takes less
> than 5 seconds to compile all 280 files at once. It takes about the
> same amount of time to use jikes to compile one file. It's faster to
> compile everything at once than to recompile two files separately.
>
> I guess the optimal thing would be to tell Jikes to only compile the
> files that had changes. But given the complexity of doing that with
> make, not to mention finding/maintaining Java dependencies, it's just
> better to recompile all files each time.
>
> Make sure your .java and .class files are not going through NFS. We
> keep everything on local disk and use CVS for backups to reliable
> storage.
>
> I do use make for the files I run rmic on. There the dependencies are
> easy, and rmic is very slow. Someone should write a perl replacement.
>
>
> [EMAIL PROTECTED]
> . . . . . . . . http://www.media.mit.edu/~nelson/
>
>
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