this was commited already today. :)
http://source.winehq.org/git/wine.git/?a=shortlog

2009/2/18 Juan M. Navarro <juan.m.navarro@gmail.com>
Resending as plain text.

Thanks,
Juan

On Tue, Feb 17, 2009 at 12:19 PM, Juan M. Navarro
<juan.m.navarro@gmail.com> wrote:
> Hello all!
>
> This is my first patch ever, and first open source contribution ever.
>
> The strlen function returns a size_t that represents an unsigned int in
> 32-bit environments, and an unsigned long in 64-bit environments. The strlen
> function call has been changed to an lstrlen function call, which always
> returns an integer.
>
> I am a grad student at UCLA that has just started working on porting Wine to
> 64-bit environments.
>
> I attest to not having seen any Microsoft source, or dissasembling
> Microsoft's DLL's.
>
> Thanks,
>
> Juan