mohammed hegazy wrote: > when using gcj to compile a jar file that depends on another jar > libraries like apache log4j i found undefined reference errors : > > : undefined reference to `org::apache::log4j::Logger* > org::apache::log4j::Logger::getLogger(java::lang::Class*)' > > > > the command that i used is : > > gcj --classpath="lib/log4j-1.2.14.jar" > --main=Loader.Main WebInterface.jar -o HH > > > > am I doing anything wrong , please advice ? You just need to compile with -findirect-dispatch and make sure you link against the libraries like /usr/lib64/gcj/log4j/log4j-1.2.14.jar.so. It's just like building a C or a C++ project. Are you familiar with that process? Andrew.