diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 9a73829cc..9059452c6 100644
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -1,4 +1,4 @@
-#serial 22
+#serial 23
 
 dnl These are the prerequisite macros for files in the lib/
 dnl directories of the fileutils, sh-utils, and textutils packages.
@@ -133,6 +133,12 @@ $ac_includes_default
     AC_CHECK_MEMBERS([struct utmp.ut_name],,,[$utmp_includes])
     AC_CHECK_MEMBERS([struct utmpx.ut_type],,,[$utmp_includes])
     AC_CHECK_MEMBERS([struct utmp.ut_type],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmpx.ut_pid],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmp.ut_pid],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmpx.ut_id],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmp.ut_id],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmpx.ut_exit],,,[$utmp_includes])
+    AC_CHECK_MEMBERS([struct utmp.ut_exit],,,[$utmp_includes])
     AC_LIBOBJ(readutmp)
   fi
 ])