diff --git a/configure.ac b/configure.ac
index 58a3ff4..a936d2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.262 2005/05/26 10:48:25 djm Exp $
+# $Id: configure.ac,v 1.263 2005/05/27 11:13:41 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -278,7 +278,7 @@
 	esac
 	;;
 mips-sony-bsd|mips-sony-newsos4)
-	AC_DEFINE(HAVE_NEWS4)
+	AC_DEFINE(NEED_SETPRGP, [], [Need setpgrp to acquire controlling tty])
 	SONY=1
 	;;
 *-*-netbsd*)
@@ -477,6 +477,12 @@
 	AC_DEFINE(MISSING_HOWMANY)
 	AC_DEFINE(MISSING_FD_MASK)
 	;;
+
+*-*-ultrix*)
+	AC_DEFINE(BROKEN_GETGROUPS, [], [getgroups(0,NULL) will return -1])
+	AC_DEFINE(BROKEN_MMAP, [], [Ultrix mmap can't map files])
+	AC_DEFINE(NEED_SETPRGP, [], [Need setpgrp to acquire controlling tty])
+	AC_CHECK_HEADERS(sys/syslog.h)
 esac
 
 # Allow user to specify flags
@@ -929,8 +935,8 @@
 	mkdtemp mmap ngetaddrinfo nsleep ogetaddrinfo openlog_r openpty \
 	pstat prctl readpassphrase realpath recvmsg rresvport_af sendmsg \
 	setdtablesize setegid setenv seteuid setgroups setlogin setpcred \
-	setproctitle setregid setreuid setrlimit \
-	setsid setvbuf sigaction sigvec snprintf socketpair strerror \
+	setproctitle setregid setreuid setrlimit setsid setvbuf \
+	sigaction sigvec snprintf socketpair strdup strerror \
 	strlcat strlcpy strmode strnvis strtonum strtoul sysconf tcgetpgrp \
 	truncate unsetenv updwtmpx utimes vhangup vsnprintf waitpid \
 )