mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
123 lines
4.4 KiB
Plaintext
123 lines
4.4 KiB
Plaintext
# readutmp.m4
|
|
# serial 31
|
|
dnl Copyright (C) 2002-2024 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],
|
|
[
|
|
AC_REQUIRE([gl_SYSTEMD_CHOICE])
|
|
|
|
dnl Set READUTMP_LIB to '-lsystemd' or '', depending on whether use of
|
|
dnl systemd APIs is possible and desired (only the systemd login API, here).
|
|
dnl AC_LIB_LINKFLAGS_BODY would be overkill here, since few people install
|
|
dnl libsystemd in non-system directories.
|
|
READUTMP_LIB=
|
|
if test "$SYSTEMD_CHOICE" = yes; then
|
|
AC_CHECK_HEADER([systemd/sd-login.h])
|
|
if test $ac_cv_header_systemd_sd_login_h = yes; then
|
|
AC_CACHE_CHECK([for libsystemd version >= 254],
|
|
[gl_cv_lib_readutmp_systemd],
|
|
[gl_saved_LIBS="$LIBS"
|
|
LIBS="$LIBS -lsystemd"
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM([[
|
|
#include <stdint.h>
|
|
#include <systemd/sd-login.h>
|
|
]], [[
|
|
uint64_t st;
|
|
sd_session_get_start_time ("1", &st);
|
|
]])
|
|
],
|
|
[gl_cv_lib_readutmp_systemd=yes],
|
|
[gl_cv_lib_readutmp_systemd=no])
|
|
LIBS="$gl_saved_LIBS"
|
|
])
|
|
if test $gl_cv_lib_readutmp_systemd = yes; then
|
|
AC_DEFINE([READUTMP_USE_SYSTEMD], [1],
|
|
[Define if the readutmp module should use the systemd login API.])
|
|
READUTMP_LIB='-lsystemd'
|
|
fi
|
|
fi
|
|
fi
|
|
AC_SUBST([READUTMP_LIB])
|
|
|
|
gl_PREREQ_READUTMP_H
|
|
])
|
|
|
|
# Prerequisites of readutmp.h and boot-time-aux.h.
|
|
AC_DEFUN_ONCE([gl_PREREQ_READUTMP_H],
|
|
[
|
|
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 $ac_cv_header_utmpx_h = yes; then
|
|
dnl Prerequisites of lib/readutmp.h and lib/readutmp.c.
|
|
AC_CHECK_FUNCS_ONCE([utmpname utmpxname])
|
|
AC_CHECK_DECLS([endutent],,,[[
|
|
/* <sys/types.h> is a prerequisite of <utmp.h> on FreeBSD 8.0, OpenBSD 4.6. */
|
|
#include <sys/types.h>
|
|
#ifdef HAVE_UTMP_H
|
|
# include <utmp.h>
|
|
#endif
|
|
]])
|
|
utmp_includes="\
|
|
AC_INCLUDES_DEFAULT
|
|
#ifdef HAVE_UTMPX_H
|
|
# include <utmpx.h>
|
|
#endif
|
|
#ifdef HAVE_UTMP_H
|
|
# if defined _THREAD_SAFE && defined UTMP_DATA_INIT
|
|
/* When including both utmp.h and utmpx.h on AIX 4.3, with _THREAD_SAFE
|
|
defined, work around the duplicate struct utmp_data declaration. */
|
|
# define utmp_data gl_aix_4_3_workaround_utmp_data
|
|
# endif
|
|
# include <utmp.h>
|
|
#endif
|
|
"
|
|
AC_CHECK_MEMBERS([struct utmpx.ut_user],,,[$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],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmp.ut_tv],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmpx.ut_host],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmp.ut_host],,,[$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_session],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmp.ut_session],,,[$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],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_exit],,,[$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 utmpx.ut_exit.e_termination],,,[$utmp_includes])
|
|
AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination],,,[$utmp_includes])
|
|
fi
|
|
|
|
AC_CHECK_DECLS([sysinfo],,,[[
|
|
#include <sys/sysinfo.h>
|
|
]])
|
|
|
|
AC_CHECK_HEADERS_ONCE([sys/param.h])
|
|
dnl <sys/sysctl.h> requires <sys/param.h> on OpenBSD 4.0.
|
|
AC_CHECK_HEADERS([sys/sysctl.h],,,
|
|
[AC_INCLUDES_DEFAULT
|
|
#if HAVE_SYS_PARAM_H
|
|
# include <sys/param.h>
|
|
#endif
|
|
])
|
|
AC_CHECK_FUNCS([sysctl])
|
|
|
|
AC_CHECK_HEADERS_ONCE([OS.h])
|
|
])
|