Merge pull request #1692 from laurynas-biveinis/bug1688161-5.5

Bug#25604587 BACKPORT BUG#24947217 TO 5.6 AND 5.7

client/mysqltest.cc

@@ -4159,7 +4159,13 @@ void do_perl(struct st_command *command)
       die("Failed to create temporary file for perl command");
     my_close(fd, MYF(0));
 
-    str_to_file(temp_file_path, ds_script.str, ds_script.length);
+    /* Compatibility for Perl 5.24 and newer. */
+    static DYNAMIC_STRING script;
+    init_dynamic_string(&script, "push @INC, \".\";\n", 1024, 1024);
+    dynstr_append_mem(&script, ds_script.str, ds_script.length);
+
+    str_to_file(temp_file_path, script.str, script.length);
+    dynstr_free(&script);
 
     /* Format the "perl <filename>" command */
     my_snprintf(buf, sizeof(buf), "perl %s", temp_file_path);

mysql-test/mysql-test-run.pl

@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # -*- cperl -*-
 
-# Copyright (c) 2004, 2016, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 2017, 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
@@ -101,6 +101,8 @@ BEGIN
 use IO::Select;
 use Subunit;
 
+push @INC, ".";
+
 require "lib/mtr_process.pl";
 require "lib/mtr_io.pl";
 require "lib/mtr_gcov.pl";