This information shamelessly plagiarized from www.avrfreaks.net/AVRGCC

The AVR-GCC C compiler (and assembler) that is made available through the GNU project under the GNU general public license. GCC is short for "GNU Compiler Collection" , and GNU is short for "GNU's Not Unix''. For more general information on the GCC and the GNU project visit the official  GCC homepage

Win32 build of avr-gcc 3.2,  [11M] June.25, 2002

This is an "experimental" release, tested to work fine with Mega128 and Mega8 (C/C++).
- avr-gcc 3.2
- avr-libc-20020612
- binutils-20020614
- The additional items like the previous AVRfreaks package (below)
This package is already configured and built; it will just install itself to the right directory.
Using it with AVRstudio3 works as before.

The Previous AVRfreaks release   dec.14, 2001

- avr-gcc 3.0.2 - avr-libc-20011126 - Flavio Gobber's Elf2Coff converter
- Volker Oth's gcctest1-9 test projects
- slightly altered makefiles, and additional .bat files for better integration with AVRstudio on both Win9x and Win2000 platforms.

Avr-gcc/AVRstudio beginners guide  dec.14, 2001