m4/readutmp.m4

   1 # readutmp.m4 serial 13
   2 dnl Copyright (C) 2002-2007 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_GNU_SOURCE])
  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_REQUIRE([gl_FUNC_FREE])
  19     AC_CHECK_FUNCS_ONCE(utmpname utmpxname)
  20     AC_CHECK_DECLS(getutent,,,[
  21 #ifdef HAVE_UTMP_H
  22 # include <utmp.h>
  23 #endif
  24 ])
  25     utmp_includes="\
  26 $ac_includes_default
  27 #ifdef HAVE_UTMPX_H
  28 # include <utmpx.h>
  29 #endif
  30 #ifdef HAVE_UTMP_H
  31 # if defined _THREAD_SAFE && defined UTMP_DATA_INIT
  32    /* When including both utmp.h and utmpx.h on AIX 4.3, with _THREAD_SAFE
  33       defined, work around the duplicate struct utmp_data declaration.  */
  34 #  define utmp_data gl_aix_4_3_workaround_utmp_data
  35 # endif
  36 # include <utmp.h>
  37 #endif
  38 "
  39     AC_CHECK_MEMBERS([struct utmpx.ut_user],,,[$utmp_includes])
  40     AC_CHECK_MEMBERS([struct utmp.ut_user],,,[$utmp_includes])
  41     AC_CHECK_MEMBERS([struct utmpx.ut_name],,,[$utmp_includes])
  42     AC_CHECK_MEMBERS([struct utmp.ut_name],,,[$utmp_includes])
  43     AC_CHECK_MEMBERS([struct utmpx.ut_type],,,[$utmp_includes])
  44     AC_CHECK_MEMBERS([struct utmp.ut_type],,,[$utmp_includes])
  45     AC_CHECK_MEMBERS([struct utmpx.ut_pid],,,[$utmp_includes])
  46     AC_CHECK_MEMBERS([struct utmp.ut_pid],,,[$utmp_includes])
  47     AC_CHECK_MEMBERS([struct utmpx.ut_id],,,[$utmp_includes])
  48     AC_CHECK_MEMBERS([struct utmp.ut_id],,,[$utmp_includes])
  49     AC_CHECK_MEMBERS([struct utmpx.ut_exit],,,[$utmp_includes])
  50     AC_CHECK_MEMBERS([struct utmp.ut_exit],,,[$utmp_includes])
  51
  52     AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_exit],,,[$utmp_includes])
  53     AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_exit],,,[$utmp_includes])
  54     AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_exit],,,[$utmp_includes])
  55     AC_CHECK_MEMBERS([struct utmp.ut_exit.e_exit],,,[$utmp_includes])
  56
  57     AC_CHECK_MEMBERS([struct utmpx.ut_exit.ut_termination],,,[$utmp_includes])
  58     AC_CHECK_MEMBERS([struct utmp.ut_exit.ut_termination],,,[$utmp_includes])
  59     AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination],,,[$utmp_includes])
  60     AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination],,,[$utmp_includes])
  61   fi
  62 ])