[SCM] libav/master: vfwcap: Add fallback define for HWND_MESSAGE

[siretart at users.alioth.debian.org]

The following commit has been merged in the master branch:
commit 0263750a0db723760d61bcaafc6964a371adcdfc
Author: Diego Biurrun <diego at biurrun.de>
Date:   Mon Aug 25 17:26:15 2014 +0200

    vfwcap: Add fallback define for HWND_MESSAGE
    
    Some obsolete versions of the MinGW32 runtime (<4.0.0) lack the definition.
    
    (cherry picked from commit ab56fabe6294524e99815451ad01e4ff50c6d734)
    Signed-off-by: Diego Biurrun <diego at biurrun.de>

diff --git a/libavdevice/vfwcap.c b/libavdevice/vfwcap.c
index c067be3..b47de1b 100644
--- a/libavdevice/vfwcap.c
+++ b/libavdevice/vfwcap.c
@@ -27,6 +27,11 @@
 #include <windows.h>
 #include <vfw.h>
 
+/* Some obsolete versions of MinGW32 before 4.0.0 lack this. */
+#ifndef HWND_MESSAGE
+#define HWND_MESSAGE ((HWND) -3)
+#endif
+
 struct vfw_ctx {
     const AVClass *class;
     HWND hwnd;

-- 
Libav/FFmpeg packaging