S_IFIFO          1357 file.c         #ifdef S_IFIFO
S_IFIFO          1359 file.c         #    define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
S_IFIFO          4973 file.c         #ifdef S_IFIFO
S_IFIFO          5490 file.c         #if !defined HAVE_MKFIFO && defined HAVE_MKNOD && defined S_IFIFO
S_IFIFO          5491 file.c         #define mkfifo(path, mode) mknod(path, (mode)&~S_IFMT|S_IFIFO, 0)
S_IFIFO           364 include/ruby/win32.h #if !defined S_IFIFO && defined _S_IFIFO