1# systemd.m4 - Macros to check for and enable systemd -*- Autoconf -*- 2# 3# Copyright (C) 2014 Luis R. Rodriguez <mcgrof@suse.com> 4# 5# This program is free software; you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 2 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, but 11# WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13# General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program; If not, see <http://www.gnu.org/licenses/>. 17 18dnl Some optional path options 19AC_DEFUN([AX_SYSTEMD_OPTIONS], [ 20 AC_ARG_WITH(systemd, 21 AS_HELP_STRING([--with-systemd=DIR], 22 [set directory for systemd service files [PREFIX/lib/systemd/system]]), 23 [SYSTEMD_DIR="$withval"],[SYSTEMD_DIR=""]) 24 AC_SUBST(SYSTEMD_DIR) 25 26 AC_ARG_WITH(systemd-modules-load, 27 AS_HELP_STRING([--with-systemd-modules-load=DIR], 28 [set directory for systemd modules load files [PREFIX/lib/modules-load.d/]]), 29 [SYSTEMD_MODULES_LOAD="$withval"], [SYSTEMD_MODULES_LOAD=""]) 30 AC_SUBST(SYSTEMD_MODULES_LOAD) 31]) 32 33AC_DEFUN([AX_ENABLE_SYSTEMD_OPTS], [ 34 AX_ARG_DEFAULT_ENABLE([systemd], [Disable systemd support]) 35 AX_SYSTEMD_OPTIONS() 36]) 37 38AC_DEFUN([AX_ALLOW_SYSTEMD_OPTS], [ 39 AX_ARG_DEFAULT_DISABLE([systemd], [Enable systemd support]) 40 AX_SYSTEMD_OPTIONS() 41]) 42 43AC_DEFUN([AX_CHECK_SYSTEMD_LIBS], [ 44 PKG_CHECK_MODULES([SYSTEMD], [libsystemd-daemon],, 45 [PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 209])] 46 ) 47 dnl pkg-config older than 0.24 does not set these for 48 dnl PKG_CHECK_MODULES() worth also noting is that as of version 208 49 dnl of systemd pkg-config --cflags currently yields no extra flags yet. 50 AC_SUBST([SYSTEMD_CFLAGS]) 51 AC_SUBST([SYSTEMD_LIBS]) 52 53 AS_IF([test "x$SYSTEMD_DIR" = x], [ 54 dnl In order to use the line below we need to fix upstream systemd 55 dnl to properly ${prefix} for child variables in 56 dnl src/core/systemd.pc.in but this is a bit complex at the 57 dnl moment as they depend on another rootprefix, which can vary 58 dnl from prefix in practice. We provide our own definition as we 59 dnl *know* where systemd will dump this to, but this does limit 60 dnl us to stick to a non custom systemdsystemunitdir, to work 61 dnl around this we provide the additional configure option 62 dnl --with-systemd where you can specify the directory for the unit 63 dnl files. It would also be best to just extend the upstream 64 dnl pkg-config pkg.m4 with an AC_DEFUN() to do this neatly. 65 dnl SYSTEMD_DIR="`$PKG_CONFIG --define-variable=prefix=$PREFIX --variable=systemdsystemunitdir systemd`" 66 SYSTEMD_DIR="\$(prefix)/lib/systemd/system/" 67 ], []) 68 69 AS_IF([test "x$SYSTEMD_DIR" = x], [ 70 AC_MSG_ERROR([SYSTEMD_DIR is unset]) 71 ], []) 72 73 dnl There is no variable for this yet for some reason 74 AS_IF([test "x$SYSTEMD_MODULES_LOAD" = x], [ 75 SYSTEMD_MODULES_LOAD="\$(prefix)/lib/modules-load.d/" 76 ], []) 77 78 AS_IF([test "x$SYSTEMD_MODULES_LOAD" = x], [ 79 AC_MSG_ERROR([SYSTEMD_MODULES_LOAD is unset]) 80 ], []) 81]) 82 83AC_DEFUN([AX_CHECK_SYSTEMD], [ 84 dnl Respect user override to disable 85 AS_IF([test "x$enable_systemd" != "xno"], [ 86 AS_IF([test "x$systemd" = "xy" ], [ 87 AC_DEFINE([HAVE_SYSTEMD], [1], [Systemd available and enabled]) 88 systemd=y 89 AX_CHECK_SYSTEMD_LIBS() 90 ],[ 91 AS_IF([test "x$enable_systemd" = "xyes"], 92 [AC_MSG_ERROR([Unable to find systemd development library])], 93 [systemd=n]) 94 ]) 95 ],[systemd=n]) 96]) 97 98AC_DEFUN([AX_CHECK_SYSTEMD_ENABLE_AVAILABLE], [ 99 PKG_CHECK_MODULES([SYSTEMD], [libsystemd-daemon], [systemd="y"],[ 100 PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 209], 101 [systemd="y"],[systemd="n"]) 102 ]) 103]) 104 105dnl Enables systemd by default and requires a --disable-systemd option flag 106dnl to configure if you want to disable. 107AC_DEFUN([AX_ENABLE_SYSTEMD], [ 108 AX_ENABLE_SYSTEMD_OPTS() 109 AX_CHECK_SYSTEMD() 110]) 111 112dnl Systemd will be disabled by default and requires you to run configure with 113dnl --enable-systemd to look for and enable systemd. 114AC_DEFUN([AX_ALLOW_SYSTEMD], [ 115 AX_ALLOW_SYSTEMD_OPTS() 116 AX_CHECK_SYSTEMD() 117]) 118 119dnl Systemd will be disabled by default but if your build system is detected 120dnl to have systemd build libraries it will be enabled. You can always force 121dnl disable with --disable-systemd 122AC_DEFUN([AX_AVAILABLE_SYSTEMD], [ 123 AX_ALLOW_SYSTEMD_OPTS() 124 AX_CHECK_SYSTEMD_ENABLE_AVAILABLE() 125 AX_CHECK_SYSTEMD() 126]) 127