There are two implementations of go: gc and gccgo. The link above describes gc. gccgo is built on gcc and supports many more environments, at least in theory. g

There are two implementations of go: gc and gccgo. The link above describes gc. gccgo is built on gcc and supports many more environments, at least in theory. gccgo will run on addtional processors like powerpc, mips, and sparc and other operating systems like solaris. These aren't necessarily well tested though.