The function is declared in pty.h on Cygwin, Interix, OSF/1 4 and 5,
and glibc. It is declared in util.h on Mac OS X, OpenBSD and NetBSD.
It is declared in libutil.h on FreeBSD.
The function is declared in pty.h on Cygwin, Interix, OSF/1 4 and 5,
and glibc. It is declared in util.h on Mac OS X, OpenBSD and NetBSD.
It is declared in libutil.h on FreeBSD.