# readutmp.m4 serial 1
dnl Copyright (C) 2002 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

AC_DEFUN([gl_READUTMP],
[
  dnl Prerequisites of lib/readutmp.h.
  AC_CHECK_HEADERS_ONCE(sys/param.h)
  AC_CHECK_HEADERS(utmp.h utmpx.h)
  AC_CHECK_FUNCS(utmpname utmpxname)
  AC_CHECK_DECLS(getutent,,,[
#ifdef HAVE_UTMP_H
# include <utmp.h>
#endif
])
  if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
    utmp_includes="\
$ac_includes_default
#ifdef HAVE_UTMPX_H
# include <utmpx.h>
#endif
#ifdef HAVE_UTMP_H
# include <utmp.h>
#endif
"
    AC_CHECK_MEMBERS([struct utmpx.ut_user],,,[$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],,,[$utmp_includes])
    AC_CHECK_MEMBERS([struct utmpx.ut_type],,,[$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)
    gl_PREREQ_READUTMP
  fi
])

# Prerequisites of lib/readutmp.c.
AC_DEFUN([gl_PREREQ_READUTMP],
[
  AC_REQUIRE([AC_HEADER_STDC])
  AC_CHECK_HEADERS_ONCE(string.h)
])