+AC_DEFUN(jm_PREREQ_READUTMP,
+[
+ AC_HEADER_STDC
+ AC_CHECK_HEADERS(string.h utmp.h utmpx.h sys/param.h)
+ AC_CHECK_FUNCS(utmpname)
+ AC_CHECK_FUNCS(utmpxname)
+ AM_C_PROTOTYPES
+
+ if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
+ utmp_includes="\
+$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])
+ AC_LIBOBJ(readutmp)
+ fi
+])
+