Re: [PATCH] build-sys: fix win32 compilation with --target-list=''

[Paolo Bonzini <pbonzini@redhat.com>]

On 17/12/20 12:32, Claudio Fontana wrote:
> Is the root cause elsewhere though?
> 
> I don't like stubs very much, because often they are introduced as the easy way out of a problem instead of doing the necessary refactoring,
> and they end up confusing the hell out of someone trying to understand what is actually used where, never mind trying to debug the linker errors.
> 
> There is already an bunch of #ifndef _WIN32, #else , ... in util/main-loop.c (quite a bunch of them really),
> is that what actually needs reworking, and putting the pieces together in the build system in a way that makes sense?

qemu_fd_register is almost not needed at all, since we have

         WSAEventSelect(node->pfd.fd, event, bitmask);

in aio_set_fd_handler.  I think we can remove the call to 
qemu_fd_register from qemu_try_set_nonblock, and that should fix the 
issue as well.

Paolo