diff --git a/configure.in b/configure.in
index f1027ef..e039552 100644
--- a/configure.in
+++ b/configure.in
@@ -56,7 +56,7 @@
 AC_CHECK_LIB(pam, pam_authenticate, , )
 
 dnl Checks for header files.
-AC_CHECK_HEADERS(endian.h lastlog.h login.h maillock.h netgroup.h paths.h pty.h shadow.h util.h utmp.h sys/select.h sys/stropts.h sys/time.h)
+AC_CHECK_HEADERS(endian.h lastlog.h login.h maillock.h netgroup.h paths.h pty.h shadow.h util.h utmp.h utmpx.h sys/select.h sys/stropts.h sys/time.h)
 
 dnl Checks for library functions.
 AC_CHECK_FUNCS(arc4random mkdtemp openpty _getpty setenv setlogin setproctitle snprintf strlcat strlcpy vsnprintf)
@@ -198,6 +198,13 @@
 	[AC_MSG_RESULT(no)]
 )
 
+dnl Check for ut_host field in utmpx
+AC_MSG_CHECKING([whether utmpx.h has ut_host field])
+AC_EGREP_HEADER(ut_host, utmpx.h, 
+	[AC_DEFINE(HAVE_HOST_IN_UTMPX) AC_MSG_RESULT(yes); ], 
+	[AC_MSG_RESULT(no)]
+)
+
 dnl Look for lastlog location
 AC_MSG_CHECKING([location of lastlog file])
 for lastlog in /var/log/lastlog /var/adm/lastlog /etc/security/lastlog ; do