From: Warren Young
Date: June 1 2009 11:42am
Subject: Re: Mysql++ client no longer connects but mysql does
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On Jun 1, 2009, at 5:36 AM, DazedNConfused71 wrote:

> terminate called after throwing an instance of  
> 'mysqlpp::ConnectionFailed'
> what():  Lost connection to MySQL server at 'reading initial  
> communication packet', system error: 111
> Aborted

Sounds like some kind of protocol error, like a 4.x client trying to  
connect to a 5.x server.  Try rebuilding your program against the new  
MySQL client libraries.  Be sure you have matching development  
libraries for your server version.