cross-compiler for sparc-linux on x86 system

[Antonio Catani]

Hi Folks, i would like build a gcc cross-compiler for sparc-linux-systems on
a x86 linux system, i'v read some how-to, but i dont be lucky, someone could
say me how-to do it? if it's possible i prefer to much know some how-to
tested and running, i see many docs on internet, but nothing do a functional
environement

Many thanks for interesting