Me Myself and I <stargate7thsymbol@xxxxxxxxxx> writes: > I am compiling Java source code in Mandriva 2011 64 bit, > and default mode runs happily. > > The -m32 mode behaves as expected. > > However, when I try > > gcj Test.java --main=Test -m64 -o Test.bin > > I get the error: > > jc1: sorry, unimplemented: 64-bit mode not compiled in > > If my linux is 64 bit and if I omit -m64 and let it proceed, > > will gcj compile into 64 bit by default? This error means that your gcj compiler was built without support for x86 64-bit mode. Ian