versioncheck causes segmentation fault on CentOS 5

[Hrvoje Matijakovic]

Running the default innobackupex with version check enabled causes segmentation fault on CentOS 5:

[root@centos5 ~]# innobackupex /tmp/

InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved.

This software is published under
the GNU GENERAL PUBLIC LICENSE Version 2, June 1991.

Get the latest version of Percona XtraBackup, documentation, and help resources:
http://www.percona.com/xb/p

140912 12:37:06 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_group=xtrabackup' (using password: NO).
140912 12:37:06 innobackupex: Connected to MySQL server
140912 12:37:06 innobackupex: Executing a version check against the server...
Segmentation fault

When check is disabled backup runs correctly:
[root@centos5 ~]# innobackupex /tmp/ --no-version-check

InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved.

...

140912 12:40:11 innobackupex: Connection to database server closed
140912 12:40:11 innobackupex: completed OK!

Observed on both PXB-2.2.3 and 2.2.4