epel7 php-pecl-XML-Serializer fails to rebuild with the latest RHEL and EPEL 7 packages: http://koji.fedoraproject.org/koji/taskinfo?taskID=12079649 This has already been fixed in Fedora, so a merge from at least 7712dfc, build, and update is all that is needed.
http://pkgs.fedoraproject.org/cgit/php-pear-XML-Serializer.git/commit/?h=epel7&id=71562fd8f0e0216599cc53e47c36d4bc56d97527
php-pear-Numbers-Roman-1.0.2-16.el7 php-pear-Net-DNS2-1.3.2-2.el7 php-pear-Console-Getargs-1.3.5-11.el7 php-pear-XML-Serializer-0.20.2-13.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2015-0348aaecdf
php-pear-Console-Getargs-1.3.5-11.el7, php-pear-Net-DNS2-1.3.2-2.el7, php-pear-Numbers-Roman-1.0.2-16.el7, php-pear-XML-Serializer-0.20.2-13.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with $ su -c 'yum --enablerepo=epel-testing update php-pear-XML-Serializer php-pear-Console-Getargs php-pear-Net-DNS2 php-pear-Numbers-Roman' You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2015-0348aaecdf
php-pear-Console-Getargs-1.3.5-11.el7, php-pear-Net-DNS2-1.3.2-2.el7, php-pear-Numbers-Roman-1.0.2-16.el7, php-pear-XML-Serializer-0.20.2-13.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.