The vardir trick can only bge used on platforms with native symlinks -...

The vardir trick can only bge used on platforms with native symlinks - otherwise opt_vardir need to be set to default value.

mysql-test/mysql-test-run.pl

@@ -758,17 +758,21 @@ sub command_line_setup () {
     $opt_vardir= $default_vardir;
   }
   elsif ( $mysql_version_id < 50000 and
-	  ! $glob_win32 and # No supported on platforms without native symlink
 	  $opt_vardir ne $default_vardir)
   {
     # Version 4.1 and --vardir was specified
     # Only supported as a symlink from var/
     # by setting up $opt_mem that symlink will be created
+    if ( ! $glob_win32 )
+    {
+      # Only platforms that have native symlinks can use the vardir trick
       $opt_mem= $opt_vardir;
-    $opt_vardir= $default_vardir;
       mtr_report("Using 4.1 vardir trick");
     }
 
+    $opt_vardir= $default_vardir;
+  }
+
   $path_vardir_trace= $opt_vardir;
   # Chop off any "c:", DBUG likes a unix path ex: c:/src/... => /src/...
   $path_vardir_trace=~ s/^\w://;