--- vlc-3.0.7.1/include/vlc_fixups.h.orig	2019-07-09 09:11:16.548227300 +0300
+++ vlc-3.0.7.1/include/vlc_fixups.h	2019-07-09 09:11:36.738255600 +0300
@@ -439,11 +439,14 @@
 #endif
 
 #ifdef _WIN32
+#ifndef STRUCT_IOVEC_DEFINED
+#define STRUCT_IOVEC_DEFINED 1
 struct iovec
 {
     void  *iov_base;
     size_t iov_len;
 };
+#endif
 #define IOV_MAX 255
 struct msghdr
 {
