/* */ /* Copyright (c) 1984,1985,1986,1987,1988,1989,1990 AT&T */ /* All Rights Reserved */ /* */ /* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T. */ /* The copyright notice above does not evidence any */ /* actual or intended publication of such source code. */ /* */ /* * see whether syscall() exists in C library and works. */ #define GETPID 20 main() { int x; x = syscall(GETPID); if(x == getpid()) { printf("#define SYSCALL 1\n"); exit(0); } exit(1); }