Configure error on windows 64 bits: mp_limb_t doesn't work

[Alexandre Gouraud]

Hello,

I am trying to build gmp-5.0.2 on windows using mingw but the configure
script fails with:

configure: error: Oops, mp_limb_t doesn't seem to work.

I have read the installation manual, and googled the web about this problem.
It seems some people had the same problem when trying to install version
4.2.4, and solved it in installing version 4.2.3: it didn't work for me.

I am using gcc 4.6.1 (prerelease)

Any hint ?

-- 
Alexandre