erg = mkfifo (FIFO_FILE1, 0666);
if ( (0 != erg) && (EEXIST != errno) )
FPRINTF (stderr, "Error in mkfifo(%s): %s\n", FIFO_FILE1,
erg = mkfifo (FIFO_FILE1, 0666);
if ( (0 != erg) && (EEXIST != errno) )
FPRINTF (stderr, "Error in mkfifo(%s): %s\n", FIFO_FILE1,