[kaffe] darwin6 breakage

[Riccardo]

using intrp + pthreads,

almost every tests fails: 144 of 147 tests failed
 the failures are like:
Internal error: caught an unexpected exception. Please check your 
CLASSPATH and your installation. java/lang/UnsatisfiedLinkError: Could 
not find library 'nio' Adding its directory to LD_LIBRARY_PATH may help.
        
at java.lang.ClassLoader.getSystemClassLoader(ClassLoader.java:772)