m88k in cross compilation

[Palmax Maverick]

Hello!
 I want to cross compile to m88k from my x86 computer with GNU/Debian stable.
 I read your manual and I think that I have to compile gcc with
"--target=m88k" flag, because I don't find any debian package for do
it.
 I'm a newbie in gcc compilations and I don't want to delete my basic
gcc installation, and I don't know how can I separate these 2
installations.
 Thanks for all!
 Palmax Maverick