Create a small library function, check_utility_compat(3), to determine

whether a named utility should behave in FreeBSD 4.x-compatible mode
or in a standard mode (default standard).  The configuration is done
malloc(3)-style, with either an environment variable or a symlink.

Update expr(1) to use this new interface.

1 files changed, 1 insertions, 0 deletions

diff --git a/include/unistd.h b/include/unistd.h
index c101a1e..2fd898e 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -437,6 +437,7 @@ struct timeval;				/* select(2) */
 int	 acct(const char *);
 int	 async_daemon(void);
 int	 brk(const void *);
+int	 check_utility_compat(const char *);
 int	 chroot(const char *);
 const char *
 	 crypt_get_format(void);