[macintosh] (stat, fstat, mkdir, rmdir, utime, access)

[macintosh] (stat, fstat, mkdir, rmdir, utime, access)
(open, creat, unlink, read, write, rename, fopen, pause, alarm)
(signal, sleep, gmtime, localtime, ctime, time, index, mktemp)
(getpwuid, getpwnam, dup, dup2, isatty, getgid, getegid, getuid)
(geteuid, getpid, getenv, uname, opendir, closedir, readdir, getwd.):
New functions, replacing POSIX features.

[macintosh] (Mac2UnixPathname, Unix2MacPathname, CheckAlarm)
(InitMyPasswd, GetTempDirName, mystrchr, mystrtok, mystrcpy):
(InitEmacsPasswdDir, run_mac_command): New subroutines.

[macintosh] (targetTicks, alarm_signal_func, myPasswdName)
(myPasswd, emacsPasswdDir, emacsPasswd, myPasswdInited, mask)
(myPasswdDir, TempDirName, sys_siglist): New variables.

[macintosh] (execvp, wait, croak, fork, kill, sigsetmask)
(sigblock, request_sigio, unrequest_sigio, setpgrp, pipe, symlink)
(link, lstat, readlink, umask, chmod, sbrk, fsync, ioctl):
Define empty stubs so Emacs will link.