# from POSIX.pm
BUFSIZ
EOF
MAX_INPUT
PIPE_BUF
SSIZE_MAX
STDERR_FILENO
STDIN_FILENO
STDOUT_FILENO
STREAM_MAX

# Solaris.  _HOLE and _DATA addded to Linux kernel 3.5
SEEK_CUR
SEEK_DATA
SEEK_END
SEEK_HOLE
SEEK_SET

# Linux man-page OpenSuSE 11.4
# http://nixdoc.net/man-pages/HP-UX/man2/open.2.html
# http://nixdoc.net/man-pages/FreeBSD/open.2.html
# http://nixdoc.net/man-pages/IRIX/man2/open.2.html
O_APPEND
O_ASYNC
O_CIO
O_CIOR
O_CLOEXEC
O_CREAT
O_DEFER
O_DELAY
O_DIRECT
O_DIRECTORY
O_DSYNC
O_EFSOFF
O_EFSON
O_EXCL
O_EXLOCK
O_FSYNC
O_LARGE
O_LARGEFILE
O_LCFLUSH
O_LCINVAL
O_NDELAY
O_NOATIME
O_NOCTTY
O_NOFOLLOW
O_NONBLOCK
O_NSHARE
O_RAW
O_RDONLY
O_RDWR
O_RSHARE
O_RSYNC
O_SHLOCK
O_SNAPSHOT
O_SYNC
O_TRUNC
O_WRONLY