Hi,
Tom Fitzsimmons and I (okay, it was mostly Tom ;) worked out how to have a
set of alternatives for java, javac, etc. that can use a non-system gcc
installation. This will allow you to easily run our Eclipse packages
(among others) using your gcc builds.
(I'm assuming here that you have a ~/.rpmmacros similar to [2])
1. check java-1.4.2-gcj-compat out of Fedora CVS [1].
2. cd into the java-1.4.2-gcj-compat/devel directory
3. make sources; cp *.tar.gz ~/rpmbuild/SOURCES
4. ensure that your gcc build is ahead of the system compiler in your path
5. rpmbuild \
--define "custom 1" \
--define "gcj_prefix <location of your build directory>" \
--define "origin gcj<YOURSUFFIX>" \
-ba java-1.4.2-gcj-compat.spec
6. install the resulting RPM (should be in ~/rpmbuild/RPMS/<ARCH>/)
7. set your java and javac alternatives to be those of your gcc build:
sudo /usr/sbin/update-alternatives --set javac \
/usr/lib/jvm/java-1.4.2-gcj<YOURSUFFIX>/bin/javac
sudo /usr/sbin/update-alternatives --set java \
/usr/lib/jvm/jre-1.4.2-gcj<YOURSUFFIX>/bin/java
8. verify that /usr/bin/java --version gives the same output as your gij
Now running Eclipse (and other apps that use /usr/bin/java) should use your
gcc build.
Andrew
[1]
http://cvs.fedora.redhat.com/core.shtml
http://cvs.fedora.redhat.com/viewcvs/rpms/java-1.4.2-gcj-compat/
[2]
$ cat ~/.rpmmacros
%_topdir /home/overholt/rpmbuild
$ ls /home/overholt/rpmbuild
BUILD RPMS SOURCES SPECS SRPMS
