When trying to load this module :
Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
Please rebuild against php-5.2 and follox new Guidelines for ABI compatibility
check (as Bug #244045).
php-pecl-apc-3.0.14-1.fc7 has been pushed to the Fedora 7 stable repository. If problems still persist, please make note of it in this bug report.