* syscalls.cc (fpathconf): Use PIPE_BUF instead of numerical constant. (pathconf): Ditto.
on RLIMIT_NOFILE. * syscalls.cc (getdtablesize): Return OPEN_MAX. * sysconf.cc (sysconf): Return OPEN_MAX on _SC_OPEN_MAX. * include/limits.h (OPEN_MAX): Define as 256.