Ben Fowler - 2005-02-05

Before getting too stuck in, it is advisable to check for the
existence of the jni headers, exempli gratia, use this

ls -l /System/Library/Frameworks/JavaVM.framework/Versions/A/Headers/jni.h

Note that the target is a link, so try:

ls -l /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Headers/jni.h

If that doesn't work, you probably need to download the
"Java 1.4.1 Developer Tools Update" from the Apple
Developer Connection.