d3dhelpers.c: In function 'd3d_set_window_handle':
d3dhelpers.c:1088:5: error: passing argument 3 of 'PostMessageA' makes integer from pointer without a cast [-Werror]
     PostMessage (sink->d3d.window_handle, WM_QUIT_THREAD, NULL, NULL);
     ^
In file included from f:\gstreamer-buildslave\mingw\include\windows.h:72:0,
                 from d3dhelpers.h:27,
                 from d3dvideosink.h:30,
                 from d3dhelpers.c:26:
f:\gstreamer-buildslave\mingw\include\winuser.h:1886:29: note: expected 'WPARAM' but argument is of type 'void *'
   WINUSERAPI WINBOOL WINAPI PostMessageA(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam);
                             ^
d3dhelpers.c:1088:5: error: passing argument 4 of 'PostMessageA' makes integer from pointer without a cast [-Werror]
     PostMessage (sink->d3d.window_handle, WM_QUIT_THREAD, NULL, NULL);
     ^
In file included from f:\gstreamer-buildslave\mingw\include\windows.h:72:0,
                 from d3dhelpers.h:27,
                 from d3dvideosink.h:30,
                 from d3dhelpers.c:26:
f:\gstreamer-buildslave\mingw\include\winuser.h:1886:29: note: expected 'LPARAM' but argument is of type 'void *'
   WINUSERAPI WINBOOL WINAPI PostMessageA(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam);
                             ^
d3dhelpers.c: In function 'd3d_internal_window_thread':
d3dhelpers.c:2130:8: error: unused variable 'fGetMsg' [-Werror=unused-variable]
   BOOL fGetMsg;
        ^
d3dhelpers.c: In function 'd3d_hidden_window_thread':
d3dhelpers.c:2613:5: error: passing argument 3 of 'PostMessageA' makes integer from pointer without a cast [-Werror]
     PostMessage (hWnd, WM_DESTROY, NULL, NULL);
     ^
In file included from f:\gstreamer-buildslave\mingw\include\windows.h:72:0,
                 from d3dhelpers.h:27,
                 from d3dvideosink.h:30,
                 from d3dhelpers.c:26:
f:\gstreamer-buildslave\mingw\include\winuser.h:1886:29: note: expected 'WPARAM' but argument is of type 'void *'
   WINUSERAPI WINBOOL WINAPI PostMessageA(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam);
                             ^
d3dhelpers.c:2613:5: error: passing argument 4 of 'PostMessageA' makes integer from pointer without a cast [-Werror]
     PostMessage (hWnd, WM_DESTROY, NULL, NULL);
     ^
In file included from f:\gstreamer-buildslave\mingw\include\windows.h:72:0,
                 from d3dhelpers.h:27,
                 from d3dvideosink.h:30,
                 from d3dhelpers.c:26:
f:\gstreamer-buildslave\mingw\include\winuser.h:1886:29: note: expected 'LPARAM' but argument is of type 'void *'
   WINUSERAPI WINBOOL WINAPI PostMessageA(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam);
                             ^
cc1.exe: all warnings being treated as errors