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From "Nathan Beyer" <nbe...@gmail.com>
Subject Re: [classlib] incremental build is no more?
Date Sun, 26 Nov 2006 18:29:43 GMT
Check the commit log for 'build-java.xml'. That snippet looks
familiar; I'd swear it was like that at one point and then removed
because incremental compilation was failing.

-Nathan

On 11/26/06, Alexei Zakharov <alexei.zakharov@gmail.com> wrote:
> I've performed several experiments with the command line version of
> ecj (org.eclipse.jdt.internal.compiler.batch.Main) and I found that it
> takes system libs form somewhere even if such libs wasn't specified
> with -cp / -classpath. I was surprised because AFAIK it shouldn't. But
> nevertheless. If -bootclasspath is used instead of -classpath then
> everything works good. So I can suggest the following fix:
>
> in build-java.xml:
> ---
> <target name="-compile" depends="-prepare-depends">
> ...
>   <javac .....>
> ...
> +
> +  <bootclasspath path="${build.output}"/>
>   </javac>
>
>   <call-modules target="build" />
> </target>
> ---
>
> It works ok for incremental build as well as for full rebuild. Please
> note that this doesn't mean that we are going to run ecj on top of
> Harmony class libraries. I.e.
>
> java -classpath .\depends\jars\ecj_3.2\ecj_3.2.jar
> org.eclipse.jdt.internal.compiler.batch.Main -bootclasspath
> .\build\classes
> <blah> <blah>
>
> differs from
>
> javac -Xbootclasspath:.\build\classes -classpath
> .\depends\jars\ecj_3.2\ecj_3.2.jar
> org.eclipse.jdt.internal.compiler.batch.Main <blah> <blah>
>
> RI goes mad in the last case.
>
> Thanks,
>
> 2006/11/24, Tim Ellison <t.p.ellison@gmail.com>:
> > Alexey Varlamov wrote:
> > > I can't recall how many days I have to do full rebuild after updating
> > > workspace in the morning, because just "ant" complained about java
> > > compilation errors...
> > > I did not give that much consideration until today, when trivial local
> > > modification in luni class did not compile again. Could someone adept
> > > in classlib build look into this, please?
> >
> > Well I can see the problem...
> >
> > Running with ant -v shows the javac command is being passed a classpath
> > with the JARs of the running JRE too and they are ahead of the Harmony
> > JARs.  So we are compiling against the code running Ant, and if that is
> > not Harmony you are trying to compile against Sun/BEA/whatever.
> >
> > Just have to figure out why Ant is adding extra stuff to the classpath
> > when we have explicitly defined it?
> >
> > Regards,
> > Tim
>
>
> --
> Alexei Zakharov,
> Intel Enterprise Solutions Software Division
>

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