Two small ecj tweaks

[Andrew Haley]

Andrew John Hughes wrote:
> On 30/11/2008, Mark Wielaard <mark at klomp.org> wrote:
>> Hi,
>>
>>  Two tweaks to make sure we have a fast bootstrap ecj available. This
>>  makes sure that when we compile the ecj jar with gcj we use
>>  -findirect-dispatch so any unresolved references in the jar itself don't
>>  make the compilation fail (like what would happen with the
>>  eclipse-ecj.jar from fedora 10). Also if we don't have a native-ecj (not
>>  configured --with-gcj), but we did detect an ecj binary then use that
>>  first before falling back on full interpretation with gij.
>>
>>  2008-11-30  Mark Wielaard  <mark at klomp.org>
>>
>>     * Makefile.am (stamps/native-ecj.stamp): Use -findirect-dispatch.
>>     * javac.in: Use ecj binary if available and no native-ecj.
>>
>>  Committed and pushed,
>>
>>
>>  Mark
>>
>>
> 
> Thanks for this.  I still wonder why we detect javac on ecj builds but
> don't use it any more -- too many issues in the past I guess.
> 
> I would also suggest possibly adding -Dgnu.gcj.precompiled.db.path to
> the interpreted invocation.  On at least Debian and Gentoo, the
> mapping between ecj.jar and ecj.so is stored in the default database
> but as far as I can see, it doesn't get used unless this option is
> given.

It certainly should.  If you have an example of any case where this fails, please
let me know and I'll follow it up with the maintainers.

I'd like a login so I can see why this isn't working.

Andrew.