324182a for PHPC-1804introduced a build failure for zSeries hosts due to config.h being included beforephp.h. This inadvertently causes a redefinition of WORDS_BIGENDIAN, which php.h happens to not guard with an #ifndef block.
is related to
PHPC-1804Implement Manager::addSubscriber and removeSubscriber
PHPC-1872Fix server-executeQuery-008.phpt for RS config with arbiter