Was a long road, but pecl/runkit 1.0.4 is now released with a new maintainer (Dmitry Zenovich from whom current sources used in Fedora are pulled). Notice: please also consider to add %check, upstream test suite is provided and succeed (excepted the FPM test, see PR #93, but FPM is not in the package BR)
Thank you Remi. Built in rawhide: http://koji.fedoraproject.org/koji/taskinfo?taskID=12175736