The latest version of DJGPP (a port of GCC to MS-DOS running on an
i386 or i486) can be found on oak.oakland.edu in /SimTel/vendors/djgpp
(or any other local Simtel mirror site) via anonymous FTP.  Both
sources and binaries are available there.

You can also get DJGPP on CD-ROM and floppy diskette from the FSF.
Ask gnu@prep.ai.mit.edu for details.