S_ISFIFO           36 lib/stat_.h    # undef S_ISFIFO
S_ISFIFO           76 lib/stat_.h    #  define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
S_ISFIFO           78 lib/stat_.h    #  define S_ISFIFO(m) 0