Compiled new GCC toolchain for AmigaOS 3.x development. It should work with most recent Linux i386 distributions (libc6). Updated to version 2016:
http://aminet.net/package/dev/gcc/m68k-amigaos-gcc
Krystian Bacławski now has a donate button on his github site. Remember to support him if you like his toolchain:
https://github.com/cahirwpz/amigaos-cross-toolchain
Follow the build instructions on the page to include the latest changes.