Installing GCC under IRIX 6.2
These are my notes on how to use pre-existing binaries available on the Internet to get a working GCC based C compiler up and running.

Some popular freeware for SGI IRIX
This is a pointer to an archive of Ariel's page of popular free software for SGI computers. Ariel has a gcc package and linker program along with instructions for its installation. Ariel's package is not in inst format (based on the installation instructions). He also has an enhanced version of top.

The official site for SGI freeware is also worth a look.