I'm trying to install APC (Alternative PHP Cache) on a CentOs dedicated server. I've everything done apart from configuring phpize. Running :yum -y install php-devel gives me the following error file /usr/share/mysql/charsets/Index.xml from install of mysql-libs-5.1.57-1.el5.art.x86_64 conflicts with file from package mysql-5.0.77-4.el5_5.3.i386 etc etc for other languages So, i think the mysql version i have is too old & i more than likely need to upgrade mysql to version 5.1. Im reluctant to do this as a) its a live server (although only 3/4 domains) b) ive read ill read to recompile php if i upgrade To add to this i have plesk installed for managing domains & might need reinstalling/reconfiguring also. sorry for the long intro but its my first post & best to give as much info as possible, so my question is basically Is there any way i can run :yum -y install php-devel to get phpize working to complete installation of APC for the version of mysql i currently have installed? ie 5.0.77