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Date:      Sat, 08 Jun 2013 19:46:17 +0800
From:      Xu Zhe <xzpeter@gmail.com>
To:        Chris Rees <utisoft@gmail.com>
Cc:        ports@freebsd.org, java@freebsd.org
Subject:   Re: How to build openjdk7 for customized FreeBSD system
Message-ID:  <51B31989.1010706@gmail.com>
In-Reply-To: <CADLo83-rOwTOfzDjKqHWMESMPzTjVjArsCxhxq_mMMbU1ZRmTA@mail.gmail.com>
References:  <51ADA907.1020801@gmail.com> <CAGRNztA2ib9inneH-e25uhwmsj71JTk32%2BoGmAUGqoZoNV9o%2BQ@mail.gmail.com> <CADLo83-rOwTOfzDjKqHWMESMPzTjVjArsCxhxq_mMMbU1ZRmTA@mail.gmail.com>

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? 6/8/13 5:23 PM, Chris Rees ??:
>
>
> On 8 Jun 2013 04:05, "Peter Xu" <xzpeter@gmail.com
> <mailto:xzpeter@gmail.com>> wrote:
> >
> > I did this in a stupid way. I am sending this out in case someone
> met the
> > same problem (or to say, you want to build openjdk on an platform
> that have
> > no older version of JDK supported).
> >
> > The main idea is, firstly find a generic FreeBSD 8.2 system, build the
> > openjdk7 package (well, there is no problem on generic system, as
> long as
> > you are using the port collections corresponding to that specific
> version I
> > suppose). Then, we can leverage all the Java-built output (includes
> > *.class, *.jar, and some *.java/*.[ch] if they are auto-generated by the
> > build system using JVM) in the generic systems, replacing all the
> > $(JAVAC_CMD) and $(JAVAH_CMD) lines in Makefiles with something like
> (or we
> > can try direct copy of the object files, but sometimes we still need
> to do
> > this since the dependencies of 'make' are not the JAR files sometimes):
> >
> > scp $GENERIC_BSD:$JAR_FILE_PATH $PRIVATE_BSD:$JAR_FILE_PATH
> >
> > Or to say, we do fetch the good 'jar' from the generic systems
> instead of
> > invoking a sick JVM and build it until we met error and stop the make
> > process.
> >
> > I suppose all these things need some knowledge on the Makefile
> structure of
> > openjdk. This is nasty work, but it did work for us.
> >
> > Another solution I thought about is cross-compile the whole JDK on a
> > generic system, and copy all the private C libraries on the private
> system
> > to the generic one before-hand (this may only be working when the
> generic
> > system has cross-toolchain I suppose, or in my case that the two systems
> > are using the same CPU arch). Just an idea, no need to try currently.
>
> I'm really pleased you fixed it in the end; I'd just succeeded in
> making you a package too, but never mind.
>
> Now you have time to migrate your hacks to later FreeBSD, and even get
> some of them committed ;)
>
> Chris
>
Hi, Chris,

Thanks for the attempt to help. :)

However, I am not quite sure on the migrate thing. Do you mean that, I
can re-arrange the hack so that openjdk on FreeBSD would support build
across two machines (or to say, to seperate Java/native code build)?

Peter



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