From: Warren Young Date: February 26 2009 4:34pm Subject: Re: Connection pool compile List-Archive: http://lists.mysql.com/plusplus/8419 Message-Id: <49A6C47E.1010100@etr-usa.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sebastián Salazar Molina. wrote: > multiple definition of `poolptr' [snip] > And I have a global pointer: > SimpleConnectionPool* poolptr = 0; You've probably gone and declared that in a header file.