Hi Carl, 

unfortunately I'm still stuck. The stdarg.h error only appears if I add
MinGW cross versions of gcc and binutils. If I add mingw-w64 instead of
those the build quits immediately upon the configure phase with an error
that the C compiler cannot create executables. 

On 2019-09-10 21:45, Carl Dong wrote:

> Hi Rutger! 
> 
> Did you ever figure out the mingw wine cross-compilation? I believe it has something to do with the CROSS_* env vars or search path order, becuase stdarg.h is definitely provided by mingw-w64. 
> 
> Cheers, 
> Carl Dong 
> accounts@carldong.me 
> _"I fight for the users"_