Re: [libusb] Which MinGW-w64 build to use under Windows

[Xiaofan C. <xia...@gm...>]

On Tue, Feb 18, 2014 at 9:23 AM, Xiaofan Chen <xia...@gm...> wrote:
> On Mon, Feb 17, 2014 at 9:56 PM, Peter Stuge <pe...@st...> wrote:
>> Xiaofan Chen wrote:
>>> Is the threading model in libusb Windows backend the same
>>> thing as the threading model in MinGW-w64?
>>
>> It's a good question. I think you have to check with the MinGW-w64
>> community if someone there knows what "Thread model: posix" actually means.
>>
>> libusb uses Win32 threads on Windows and POSIX threads on Cygwin.
>>
>
> Okay, I have asked in the MinGW-w64 mailing list. Hopefully they
> will give some insight.
> http://article.gmane.org/gmane.comp.gnu.mingw.w64.general/9461

One of the better answer I got does not give me much confidence
about the interchangeability of different DLLs produced by different
MinGW-w64 tool chain. For MinGW.org, it is quite consistent in
terms of threading model -- they use win32 threading model.

"Exception handling indeed only matters for C++.

As for threading model, it matters for C but only for C11. I don't think
libusb is C11 nor does use threading. As such you shouldn't have any
issue with that. In other words, you can take a toolchain with any
feature set and it should work.

That said, I wonder if using binaries built with a toolchain not using
the posix threading model are incompatible with toolchains which
use it."


-- 
Xiaofan