diff --git a/client/mysqltest.c b/client/mysqltest.c
index e4eb06953e2..9d158055563 100644
--- a/client/mysqltest.c
+++ b/client/mysqltest.c
@@ -278,7 +278,7 @@ enum enum_commands {
   Q_IF,
   Q_DISABLE_PARSING, Q_ENABLE_PARSING,
   Q_REPLACE_REGEX, Q_REMOVE_FILE, Q_FILE_EXIST,
-  Q_WRITE_FILE, Q_COPY_FILE, Q_PERL, Q_DIE, Q_EXIT,
+  Q_WRITE_FILE, Q_COPY_FILE, Q_PERL, Q_DIE, Q_EXIT, Q_SKIP,
   Q_CHMOD_FILE, Q_APPEND_FILE, Q_CAT_FILE, Q_DIFF_FILES,
 
   Q_UNKNOWN,			       /* Unknown command.   */
@@ -360,6 +360,7 @@ const char *command_names[]=
   "die",
   /* Don't execute any more commands, compare result */
   "exit",
+  "skip",
   "chmod",
   "append_file",
   "cat_file",
@@ -1352,6 +1353,7 @@ void var_query_set(VAR *var, const char *query, const char** query_end)
   MYSQL_RES *res;
   MYSQL_ROW row;
   MYSQL* mysql = &cur_con->mysql;
+  DYNAMIC_STRING ds_query;
   DBUG_ENTER("var_query_set");
   LINT_INIT(res);
 
@@ -1361,13 +1363,17 @@ void var_query_set(VAR *var, const char *query, const char** query_end)
     die("Syntax error in query, missing '`'");
   ++query;
 
-  if (mysql_real_query(mysql, query, (int)(end - query)) ||
+  /* Eval the query, thus replacing all environment variables */
+  init_dynamic_string(&ds_query, 0, (end - query) + 32, 256);
+  do_eval(&ds_query, query, end, FALSE);
+
+  if (mysql_real_query(mysql, ds_query.str, ds_query.length) ||
       !(res = mysql_store_result(mysql)))
   {
-    *end = 0;
-    die("Error running query '%s': %d %s", query,
+    die("Error running query '%s': %d %s", ds_query.str,
 	mysql_errno(mysql), mysql_error(mysql));
   }
+  dynstr_free(&ds_query);
 
   if ((row = mysql_fetch_row(res)) && row[0])
   {
@@ -6287,6 +6293,9 @@ int main(int argc, char **argv)
         /* Stop processing any more commands */
         abort_flag= 1;
         break;
+      case Q_SKIP:
+        abort_not_supported_test("%s", command->first_argument);
+        break;
 
       case Q_RESULT:
         die("result, deprecated command");
diff --git a/mysql-test/lib/mtr_report.pl b/mysql-test/lib/mtr_report.pl
index 78986674c62..016caa95889 100644
--- a/mysql-test/lib/mtr_report.pl
+++ b/mysql-test/lib/mtr_report.pl
@@ -296,6 +296,18 @@ sub mtr_report_stats ($) {
           }
         }
       }
+
+      if ( $::opt_check_testcases )
+      {
+        # Look for warnings produced by mysqltest in testname.warnings
+        foreach my $test_warning_file
+	  ( glob("$::glob_mysql_test_dir/r/*.warnings") )
+        {
+          $found_problems= 1;
+	  print WARN "Check myqltest warnings in $test_warning_file\n";
+        }
+      }
+
       if ( $found_problems )
       {
 	mtr_warning("Got errors/warnings while running tests, please examine",
diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index 46938ea7cde..a1f41d3b53a 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -725,8 +725,6 @@ sub command_line_setup () {
   {
     $mysqld_variables{'port'}= 3306;
     $mysqld_variables{'master-port'}= 3306;
-    $opt_skip_ndbcluster= 1;
-    $opt_skip_im= 1;
   }
 
   if ( $opt_comment )
@@ -1236,6 +1234,7 @@ sub command_line_setup () {
   {
     # Turn off features not supported when running with extern server
     $opt_skip_rpl= 1;
+    $opt_skip_ndbcluster= 1;
 
     # Setup master->[0] with the settings for the extern server
     $master->[0]->{'path_sock'}=  $opt_socket ? $opt_socket : "/tmp/mysql.sock";
@@ -2031,10 +2030,7 @@ sub environment_setup () {
     $ENV{'MYSQL_FIX_SYSTEM_TABLES'}=  $cmdline_mysql_fix_system_tables;
 
   }
-  if (!$opt_extern)
-  {
-    $ENV{'MYSQL_FIX_PRIVILEGE_TABLES'}=  $file_mysql_fix_privilege_tables;
-  }
+  $ENV{'MYSQL_FIX_PRIVILEGE_TABLES'}=  $file_mysql_fix_privilege_tables;
 
   # ----------------------------------------------------
   # Setup env so childs can execute my_print_defaults
diff --git a/mysql-test/r/mysqltest.result b/mysql-test/r/mysqltest.result
index 0188fe87bbd..33b8f4498ab 100644
--- a/mysql-test/r/mysqltest.result
+++ b/mysql-test/r/mysqltest.result
@@ -277,6 +277,9 @@ let $A = changed value of A;
 # Content of $B is: initial value of B
 let $B = changed value of B;
 # Content of $A is: changed value of A
+var2: content of variable 1
+var3: content of variable 1 content of variable 1
+length of var3 is longer than 0
 mysqltest: At line 1: Missing required argument 'filename' to command 'source'
 mysqltest: At line 1: Could not open file ./non_existingFile
 mysqltest: In included file "MYSQLTEST_VARDIR/tmp/recursive.sql": At line 1: Source directives are nesting too deep
diff --git a/mysql-test/t/fix_priv_tables.test b/mysql-test/t/fix_priv_tables.test
index 3a91f41dfcc..3051fd88076 100644
--- a/mysql-test/t/fix_priv_tables.test
+++ b/mysql-test/t/fix_priv_tables.test
@@ -1,6 +1,13 @@
 # Embedded server doesn't support external clients
 --source include/not_embedded.inc
 
+# Don't run this test if $MYSQL_FIX_PRIVILEGE_TABLES isn't set
+# to the location of mysql_fix_privilege_tables.sql
+if (`SELECT LENGTH("$MYSQL_FIX_PRIVILEGE_TABLES") <= 0`)
+{
+  skip Test need MYSQL_FIX_PRIVILEGE_TABLES;
+}
+
 #
 # This is the test for mysql_fix_privilege_tables
 # It checks that a system tables from mysql 4.1.23
diff --git a/mysql-test/t/mysqltest.test b/mysql-test/t/mysqltest.test
index 1914f2794e2..fad32690245 100644
--- a/mysql-test/t/mysqltest.test
+++ b/mysql-test/t/mysqltest.test
@@ -718,6 +718,21 @@ let $A = changed value of A;
 let $B = changed value of B;
 --echo # Content of \$A is: $A
 
+# ----------------------------------------------------------------------------
+# Test let from query with $variable
+# let $<var_name>=`<query with $variable>`;
+# ----------------------------------------------------------------------------
+
+let $var1=content of variable 1;
+let $var2= `select "$var1"`;
+let $var3= `select concat("$var1", " ", "$var2")`;
+echo var2: $var2;
+echo var3: $var3;
+if (`select length("$var3") > 0`)
+{
+  echo length of var3 is longer than 0;
+}
+
 # ----------------------------------------------------------------------------
 # Test to assign let from query
 # let $<var_name>=`<query>`;
diff --git a/mysql-test/t/system_mysql_db_fix30020.test b/mysql-test/t/system_mysql_db_fix30020.test
index 8220034b288..dc68f469d3a 100644
--- a/mysql-test/t/system_mysql_db_fix30020.test
+++ b/mysql-test/t/system_mysql_db_fix30020.test
@@ -1,9 +1,12 @@
 # Embedded server doesn't support external clients
 --source include/not_embedded.inc
 
-# Windows doesn't support execution of shell scripts (to fix!!)
---source include/not_windows.inc
-
+# Don't run this test if $MYSQL_FIX_SYSTEM_TABLES isn't set
+# to the location of mysql_fix_privilege_tables.sql
+if (`SELECT LENGTH("$MYSQL_FIX_SYSTEM_TABLES") <= 0`)
+{
+  skip Test need MYSQL_FIX_SYSTEM_TABLES;
+}
 # check that CSV engine was compiled in, as the test relies on the presence
 # of the log tables (which are CSV-based)
 --source include/have_csv.inc
diff --git a/mysql-test/t/system_mysql_db_fix40123.test b/mysql-test/t/system_mysql_db_fix40123.test
index 7d909754824..419a9cd1827 100644
--- a/mysql-test/t/system_mysql_db_fix40123.test
+++ b/mysql-test/t/system_mysql_db_fix40123.test
@@ -1,6 +1,13 @@
 # Embedded server doesn't support external clients
 --source include/not_embedded.inc
 
+# Don't run this test if $MYSQL_FIX_PRIVILEGE_TABLES isn't set
+# to the location of mysql_fix_privilege_tables.sql
+if (`SELECT LENGTH("$MYSQL_FIX_PRIVILEGE_TABLES") <= 0`)
+{
+  skip Test need MYSQL_FIX_PRIVILEGE_TABLES;
+}
+
 #
 # This is the test for mysql_fix_privilege_tables
 # It checks that a system tables from mysql 4.1.23