Re: [Qemu-devel] [PATCH 04/25] Add hard build dependency on glib

[Anthony Liguori]

On 08/02/2011 02:06 PM, Luiz Capitulino wrote:
> On Tue, 2 Aug 2011 10:03:30 +0800
> TeLeMan<address@hidden>  wrote:
>
> > This patch introduces "-mms-bitfields" cflag on MinGW but this cflag
> > breaks gcc packed structures("__attribute__((packed))"). For example,
> > slirp does not work on Win32.
>
> I'm not familiar with MinGW (or why glib would require that flag).
>
> Michael, Anthony, any idea?

ms-bitfields does packing of bitfields in a way compatible with MSVC. 
In order to call Windows API functions that use structures that have 
bitfields, you need to use ms-bitfields.

Slirp will need to be fixed to not depend on GCC bitfield layout.  This 
is one of the reasons why portable code should never use bitfields.

Regards,

Anthony Liguori