On Sat, Dec 4, 2010 at 7:54 PM, Ramsay Jones <ramsay@ramsay1.demon.co.uk> wrote:
quoted text
>
> The msvc winsock2.h header file conditionally defines or declares
> poll() related symbols which cause many macro redefinition errors,
> a struct type redefinition error and syntax errors. These symbols
> are defined in support of the WSAPoll() API, new in Windows Vista,
> when the symbol _WIN32_WINNT is defined and _WIN32_WINNT >= 0x0600.
>
> In order to avoid the compilation errors, we set _WIN32_WINNT to
> 0x0502 (which would target Windows Server 2003) prior to including
> the winsock2.h header file.
>
> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
> ---
>  compat/win32/sys/poll.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/compat/win32/sys/poll.c b/compat/win32/sys/poll.c
> index 7e74ebe..708a6c9 100644
> --- a/compat/win32/sys/poll.c
> +++ b/compat/win32/sys/poll.c
> @@ -34,6 +34,9 @@
>
>  #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
>  # define WIN32_NATIVE
> +# if defined (_MSC_VER)
> +#  define _WIN32_WINNT 0x0502
> +# endif
>  # include <winsock2.h>
>  # include <windows.h>
>  # include <io.h>

I have an almost identical patch in my msvc-tree, so FWIW:

Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
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