PHP 5.5.15
曰く、
Issue is related to “configure” script. It checks for various versions of FreeBSD, like freebsd3*, freebsd2* and freebsd1*. When running this on freebsd10.0, the script thinks it’s freebsd1.0, which disables shared objects and dynamic linking. Removing the offending freebsd1* lines from the configuration fixes this issue.
ということでした。
めでたしめでたし。