Imported Upstream version 7.1.614
[packages/dc3dd.git] / m4 / readutmp.m4
1 # readutmp.m4 serial 15
2 dnl Copyright (C) 2002-2008 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
6
7 AC_DEFUN([gl_READUTMP],
8 [
9   dnl Persuade utmpx.h to declare utmpxname
10   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
11
12   AC_CHECK_HEADERS_ONCE(utmp.h utmpx.h)
13   if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
14     AC_LIBOBJ([readutmp])
15
16     dnl Prerequisites of lib/readutmp.h and lib/readutmp.c.
17     AC_REQUIRE([AC_C_INLINE])
18     AC_CHECK_FUNCS_ONCE(utmpname utmpxname)
19     AC_CHECK_DECLS(getutent,,,[
20 #ifdef HAVE_UTMP_H
21 # include <utmp.h>
22 #endif
23 ])
24     utmp_includes="\
25 $ac_includes_default
26 #ifdef HAVE_UTMPX_H
27 # include <utmpx.h>
28 #endif
29 #ifdef HAVE_UTMP_H
30 # if defined _THREAD_SAFE && defined UTMP_DATA_INIT
31    /* When including both utmp.h and utmpx.h on AIX 4.3, with _THREAD_SAFE
32       defined, work around the duplicate struct utmp_data declaration.  */
33 #  define utmp_data gl_aix_4_3_workaround_utmp_data
34 # endif
35 # include <utmp.h>
36 #endif
37 "
38     AC_CHECK_MEMBERS([struct utmpx.ut_user],,,[$utmp_includes])
39     AC_CHECK_MEMBERS([struct utmp.ut_user],,,[$utmp_includes])
40     AC_CHECK_MEMBERS([struct utmpx.ut_name],,,[$utmp_includes])
41     AC_CHECK_MEMBERS([struct utmp.ut_name],,,[$utmp_includes])
42     AC_CHECK_MEMBERS([struct utmpx.ut_type],,,[$utmp_includes])
43     AC_CHECK_MEMBERS([struct utmp.ut_type],,,[$utmp_includes])
44     AC_CHECK_MEMBERS([struct utmpx.ut_pid],,,[$utmp_includes])
45     AC_CHECK_MEMBERS([struct utmp.ut_pid],,,[$utmp_includes])
46     AC_CHECK_MEMBERS([struct utmpx.ut_id],,,[$utmp_includes])
47     AC_CHECK_MEMBERS([struct utmp.ut_id],,,[$utmp_includes])
48     AC_CHECK_MEMBERS([struct utmpx.ut_exit],,,[$utmp_includes])
49     AC_CHECK_MEMBERS([struct utmp.ut_exit],,,[$utmp_includes])
50
51     AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_exit],,,[$utmp_includes])
52     AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_exit],,,[$utmp_includes])
53     AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_exit],,,[$utmp_includes])
54     AC_CHECK_MEMBERS([struct utmp.ut_exit.e_exit],,,[$utmp_includes])
55
56     AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_termination],,,[$utmp_includes])
57     AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_termination],,,[$utmp_includes])
58     AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination],,,[$utmp_includes])
59     AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination],,,[$utmp_includes])
60   fi
61 ])