Bug #12351213 MTR --VS-CONFIG DOES NOT WORK LIKE MTR_VS_CONFIG

Fix for --vs-config applied
Find.pm incorrectly tested an unitialized local variable instead
  of the global, corrected.
Find.pm is also wrong in 5.5: uses a non-existent global variable. Fix when
  merging up.

mysql-test/lib/My/Find.pm

 # -*- cperl -*-
-# Copyright (C) 2008 MySQL AB
+# Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,8 +28,6 @@ use My::Platform;
 use base qw(Exporter);
 our @EXPORT= qw(my_find_bin my_find_dir my_find_file NOT_REQUIRED);
 
-our $vs_config_dir;
-
 my $bin_extension= ".exe" if IS_WINDOWS;
 
 # Helper function to be used for fourth parameter to find functions
@@ -158,7 +156,7 @@ sub my_find_paths {
   # User can select to look in a special build dir
   # which is a subdirectory of any of the paths
   my @extra_dirs;
-  my $build_dir= $vs_config_dir || $ENV{MTR_VS_CONFIG} || $ENV{MTR_BUILD_DIR};
+  my $build_dir= $::opt_vs_config || $ENV{MTR_VS_CONFIG} || $ENV{MTR_BUILD_DIR};
   push(@extra_dirs, $build_dir) if defined $build_dir;
 
   if (defined $extension){

mysql-test/mysql-test-run.pl

 #!/usr/bin/perl
 # -*- cperl -*-
 
-# Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Library General Public
@@ -893,7 +893,7 @@ sub command_line_setup {
              'ssl|with-openssl'         => \$opt_ssl,
              'skip-ssl'                 => \$opt_skip_ssl,
              'compress'                 => \$opt_compress,
-             'vs-config'                => \$opt_vs_config,
+             'vs-config=s'              => \$opt_vs_config,
 
 	     # Max number of parallel threads to use
 	     'parallel=s'               => \$opt_parallel,