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# readutmp.m4 serial 20
dnl Copyright (C) 2002-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_READUTMP],
[
dnl Persuade utmpx.h to declare utmpxname
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_CHECK_HEADERS_ONCE([utmp.h utmpx.h])
if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
dnl Prerequisites of lib/readutmp.h and lib/readutmp.c.
AC_CHECK_FUNCS_ONCE([utmpname utmpxname])
AC_CHECK_DECLS([getutent],,,[[
/* <sys/types.h> is a prerequisite of <utmp.h> on FreeBSD 8.0, OpenBSD 4.6. */
#include <sys/types.h>
#ifdef HAVE_UTMP_H
# include <utmp.h>
#endif
]])
utmp_includes="\
AC_INCLUDES_DEFAULT
#ifdef HAVE_UTMPX_H
# include <utmpx.h>
#endif
#ifdef HAVE_UTMP_H
# if defined _THREAD_SAFE && defined UTMP_DATA_INIT
/* When including both utmp.h and utmpx.h on AIX 4.3, with _THREAD_SAFE
defined, work around the duplicate struct utmp_data declaration. */
# define utmp_data gl_aix_4_3_workaround_utmp_data
# endif
# include <utmp.h>
#endif
"
AC_CHECK_MEMBERS([struct utmpx.ut_user],,,[$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],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_exit],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_exit],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_exit],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmp.ut_exit.e_exit],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_termination],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_termination],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination],,,[$utmp_includes])
AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination],,,[$utmp_includes])
fi
])
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