#ifndef PATH_SENDMAIL
#define PATH_SENDMAIL _PATH_SENDMAIL
#endif
#ifndef PATH_MAILDIR
#define PATH_MAILDIR _PATH_MAILDIR
#endif
#ifndef PATH_DEV
#define PATH_DEV _PATH_DEV
#endif
#ifndef PATH_TTY_PFX
#define PATH_TTY_PFX _PATH_DEV
#endif
#ifndef PATH_DEVNULL
#define PATH_DEVNULL _PATH_DEVNULL
#endif
#ifndef PATH_UTMP
#define PATH_UTMP _PATH_UTMP
#endif
#ifndef PATH_UTMPX
#define PATH_UTMPX _PATH_UTMPX
#endif
#ifndef PATH_WTMP
#define PATH_WTMP _PATH_WTMP
#endif
#ifndef PATH_TTY
#define PATH_TTY _PATH_TTY
#endif