+ PHP_ARG_ENABLE(psi-maintainer-mode, whether to enable maintainer mode,
+ [ --enable-psi-maintainer-mode
+ PSI: enable maintainer mode
+ . make dependencies], [no], [no])
+ PHP_ARG_ENABLE(psi-threaded-parser, whether to enable threaded parser,
+ [ --enable-psi-threaded-parser
+ PSI: enable threads for startup parsing], [yes], [no])