hotfix for MINGW64 build with lib/Makefile.mingw

lib/diagnostics_win.h

@@ -20,6 +20,25 @@
 
 #include "boinc_win.h"
 
+#ifdef __MINGW32__
+#ifndef HAVE_CLIENT_ID
+#define HAVE_CLIENT_ID 1
+#endif
+#ifndef HAVE_VM_COUNTERS
+#define HAVE_VM_COUNTERS 1
+#endif
+#ifndef HAVE_SYSTEM_THREADS
+#define HAVE_SYSTEM_THREADS 1
+#endif
+#ifndef HAVE_THREAD_STATE
+#define HAVE_THREAD_STATE 1
+#endif
+
+#ifndef NT_SUCCESS
+#define NT_SUCCESS(status)((NTSTATUS) (status) >= 0)
+#endif
+#endif /* __MINGW32__ */
+
 #define STATUS_INFO_LENGTH_MISMATCH             ((NTSTATUS)0xC0000004L)
 
 typedef LONG       NTSTATUS;