ref: f2f831eefaa00d6987f8c9a1a22597234b2ce16c
dir: /sys/src/ape/lib/ap/posix/mkfifo.c/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
int
mkfifo(char *path, mode_t mode)
{
#pragma ref path
#pragma ref mode
errno = 0;
return -1;
}