If you don't want to worry about libraries, I would configure with --target=mips64-elf. However, note that within the MIPS, there are several different ABIs, so you will need to know which ABI you wish to use (for a bareboard, it doesn't matter, but if you are going to be using libraries or an OS, you need to use a compatible ABI). When compiling, I would use -march=r4000. I don't recall if the MIPS port currently uses --with-arch=r4000. -----Original Message----- From: Ousama Rawas [mailto:orawas@xxxxxxxxx] Sent: Sunday, July 31, 2005 5:36 AM To: Meissner, Michael Cc: gcc-help@xxxxxxxxxxx Subject: Re: Compiling GCC 4.0.0 for mips r4000 Acctually, I think I'll try --target=mips64-linux (I'm not sure what specific operating system I'll be using at this point). What should I do though if I want to compile stuff for the mips r4000 specifically, irrespective of the OS to be used? Thanks for your time. Ousama Rawas.