diff -rupN --no-dereference mingw-w64-v7.0.0/mingw-w64-tools/widl/include/winnt.h mingw-w64-v7.0.0-new/mingw-w64-tools/widl/include/winnt.h
--- mingw-w64-v7.0.0/mingw-w64-tools/widl/include/winnt.h	2020-06-20 01:18:23.245691600 +0200
+++ mingw-w64-v7.0.0-new/mingw-w64-tools/widl/include/winnt.h	2020-06-20 01:18:23.536691074 +0200
@@ -2225,7 +2225,7 @@ typedef struct
     DWORD Dr5;
     DWORD Dr6;
     DWORD Dr7;
-} CONTEXT;
+} CONTEXT, *PCONTEXT;
 
 typedef struct _STACK_FRAME_HEADER
 {