On Fri, May 09, 2014 at 01:54:18PM +0200, Hendrik Leppkes wrote:
> This fixes build failures on older mingw chains (before 2012).
> ---
>  configure | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)

I'm not convinced this is worth the trouble for supporting obsolete
platforms.  AFAIK MinGW users update their build environments regularly.
So it seems to me this 2 year old platform is already obsolete and
moving into non-existence.  Would you disagree?

> --- a/configure
> +++ b/configure
> @@ -1505,6 +1505,7 @@ HAVE_LIST="
>      atomics_native
>      dos_paths
> +    dxva2api_cobj
>      dxva2_lib

Place this after dxva2_lib.

> @@ -4016,6 +4017,16 @@ disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion 
> -lbz2 || disable bzlib
> +enabled dxva2api_h &&
> +    check_cc <<EOF && enable dxva2api_cobj
> +#define _WIN32_WINNT 0x0600
> +#define COBJMACROS
> +#include <windows.h>
> +#include <d3d9.h>
> +#include <dxva2api.h>
> +int main(void) { IDirectXVideoDecoder *o = NULL; 
> IDirectXVideoDecoder_Release(o); return 0; }

IDirectXVideoDecoder_Release(NULL); ?

Surprisingly enough there is no ready-made helper function that sets
global #defines.  Adding one or extending an existing one would probably
be a sensible course of action.

Diego
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