File fix-win32-cross-compile.patch of Package mingw32-libqt5-qtmultimedia

--- ./src/plugins/common/evr/evrdefs.h  2020-07-26 23:03:52.271931931 +0200
+++ ./src/plugins/common/evr/evrdefs.h  2020-07-26 23:04:35.439582341 +0200
@@ -83,7 +83,7 @@
 #define MF_E_TRANSFORM_NEED_MORE_INPUT ((HRESULT)0xC00D6D72L)
 #endif
 
-#ifdef __GNUC__
+#ifdef ___GNUC__
 typedef struct MFVideoNormalizedRect {
     float left;
     float top;