I have an HP C3600 workstation http://www.b2net.co.uk/hp/hp_visualize_c3600_workstation.htm which is fitted with 552 MHz PA-8600 PA-RISC CPU (64-bit) and 8 GB RAM. If I use gcc -m64, I get an error. drkirkby@hpbox:~$ gcc -m64 test.c cc1: error: unrecognized command line option "-m64" Can anyone tell me how to build 64-bit binaries with gcc on this machine? Dave
