Add support for renaming FreeBSD and OpenBSD threads

NOTE: This is currently disabled, until a developer with FreeBSD/OpenBSD
      can confirm that this works (without causing undefined behaviour
      preferrably).

Signed-off-by: Giel van Schijndel <me@mortis.eu>

src/util.cpp

@@ -1282,6 +1282,11 @@ void RenameThread(const char* name)
 #if defined(__linux__) && defined(PR_SET_NAME)
     // Only the first 15 characters are used (16 - NUL terminator)
     ::prctl(PR_SET_NAME, name, 0, 0, 0);
+#elif 0 && (defined(__FreeBSD__) || defined(__OpenBSD__))
+    // TODO: This is currently disabled because it needs to be verified to work
+    //       on FreeBSD or OpenBSD first. When verified the '0 &&' part can be
+    //       removed.
+    pthread_set_name_np(pthread_self(), name);
 #else
     // Prevent warnings for unused parameters...
     (void)name;