i386 --with-abi={x32|32|64} extending multiarch ....

[Gregory Nietsky]

In using 4.7.2 and am working on extending our distro to have 
x86/x86_64/x32/arm

Ive yanked the H.Lu patch to add --with-abi support from trunk and am 
extending it to
have a default 32bit ABI we have nicknamed this the LOTR compiler [One 
compiler to compile them all] [for the i386 at least]

with out the support for --with-abi=32 i would not be able to cheat and 
ship the x86_64 compiler as default on i686 with the ability
to x compile to 64/x32 built in also this allows been run on 64 bit as a 
universal intel compiler i find this appealing as a "seed/bootstrap" 
compiler
and this will be on our repository.

if there is any interest im happy to supply the patch when tested and we 
happy.

Greg