Mary Ellen Foster wrote: > 2008/7/1 David Walluck <david@xxxxxxxx>: >> Mary Ellen Foster wrote: >> | I have one recent package that does this (specifies openjdk on F9+ and >> | icedtea on F8) and one that doesn't (just wants java >= 1.5). The >> | first package uses JNI and needs a Sun-like JVM to work (or at least >> | it took more autotools hacking than I cared to try to make it work), >> | and if I just put Requires: java it tended to grab gcj. I guess I >> | could also put java > 1.5, but the issue isn't the 1.5-ness, it's the >> | Sun-style JNI classes. >> >> This is not an issue with the java-devel packages, but rather an issue >> with either the upstream configure or an issue with the GCJ packaging. >> >> If it is lack of JNI support in GCJ, that is one thing. If it is simply >> that the package is expecting a differnt layout that is another. > > I just did a bit of hacking, and it is possible to build the package > against gcj instead of openjdk. There were two things to fix: > - the "configure" script followed symlinks from javac to find the JNI > include dir. Since the symlinks for gcj ground out at /usr/bin/ecj, it > ended up looking for /usr/include/jni.h. Hmm. This package assumes that the chain of symlinks ends at the installed binary, which must be in the jdk dir. /usr/bin/javac --> /etc/alternatives/javac --> /usr/lib/jvm/java-1.4.2-gcj/bin/javac --> /usr/bin/ecj ? > - It also wanted to hardcode "-ljava -lverify -ljvm" on the gcc line, > which isn't right for gcj No. I'm surprised it's right for Java either; libjvm and libverify I'd expect. > But I'm not sure if I want to make these modifications to the package. > If I build a JNI program against gcj, can the resulting .so be used > with Sun-like JVMs? How does this work? Is it documented anywhere? I think so. Andrew. -- fedora-devel-java-list mailing list fedora-devel-java-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-java-list
