+AC_DEFUN(jm_PREREQ_READUTMP,
+[
+ AC_HEADER_STDC
+ AC_CHECK_HEADERS(string.h utmpx.h sys/param.h)
+ AC_CHECK_FUNCS(utmpname)
+ AC_CHECK_FUNCS(utmpxname)
+ AM_C_PROTOTYPES
+
+ utmp_includes="\
+$ac_includes_default
+#ifdef HAVE_UTMPX_H
+# include <utmpx.h>
+#else
+# include <utmp.h>
+#endif
+"
+ AC_CHECK_MEMBERS((struct utmpx.ut_user),,,[$utmp_includes])
+ AC_CHECK_MEMBERS((struct utmp.ut_user),,,[$utmp_includes])
+ AC_CHECK_MEMBERS((struct utmpx.ut_name),,,[$utmp_includes])
+ AC_CHECK_MEMBERS((struct utmp.ut_name),,,[$utmp_includes])
+])
+