errno.c:#include <errno.h>
error.c:#include <sys/types.h>
error.c:#include <sys/stat.h>
error.c:#include <stdio.h>
error.c:#include <fcntl.h>
error.c:#include <errno.h>
forkexec.c:#include <unistd.h>
system.c:#include <unistd.h>
system.c:	pid2 = system("grep include *.c >inclist &\n");
wha.c:#include <sys/types.h>
wha.c:#include <sys/stat.h>
wha.c:#include <stdio.h>
wha.c:#include <errno.h>