--- webkitgtk-2.52.0/Source/WebCore/platform/graphics/gstreamer/VideoFrameGStreamer.cpp.~1~
+++ webkitgtk-2.52.0/Source/WebCore/platform/graphics/gstreamer/VideoFrameGStreamer.cpp
@@ -599,7 +599,9 @@
         inputSample = self.sample();
         break;
     case VideoFrameGStreamer::MemoryType::GL:
+#if USE(GBM)
     case VideoFrameGStreamer::MemoryType::DMABuf:
+#endif // USE(GBM)
         inputSample = self.downloadSample();
         break;
     }