Depends-on:
spawn
-getdtablesize [test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1]
+getdtablesize [test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1]
+posix_spawn_file_actions_init [test $HAVE_POSIX_SPAWN = 0 || test $REPLACE_POSIX_SPAWN = 1]
configure.ac:
gl_POSIX_SPAWN