Using non-gcc compilers to compile?

[Arctic Fidelity]

I'm curious about the difficulties in compiling GMP using non-gcc 
and non autoconf tools? From what I can tell it would be an 
absolute bear. Is there any way to compile, for example, a working 
GMP library that takes advantage of the optimizations such as 
assembly language using BCC or OpenWatcom through the Win32 
environment without having to use MinGW + MySys + gcc?
--
Arctic Fidelity <af at sacrificumdeo.net> 
<http://www.sacrificumdeo.net>
"Beware of bugs in the above code; I have only proved it correct, 
not tried it." -- 
Donald Knuth