Reading the configure.in file, it looks like we are due for some updates for the 21st century:
# See which lock mechanism we'll select by default on this system. # The last APR_DECIDE to execute sets the default. # At this stage, we match the ordering in Apache 1.3 # which is (highest to lowest): sysvsem -> fcntl -> flock. # POSIX semaphores and cross-process pthread mutexes are not # used by default since they have less desirable behaviour when # e.g. a process holding the mutex segfaults.
