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# Copyright (c) 2015, Daniel Black. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
MACRO(CHECK_SYSTEMD)
IF(UNIX)
INCLUDE(FindPkgConfig)
# http://www.cmake.org/cmake/help/v3.0/module/FindPkgConfig.html
SET(WITH_SYSTEMD "auto" CACHE STRING "Enable systemd scripts and notification support")
IF(WITH_SYSTEMD STREQUAL "yes" OR WITH_SYSTEMD STREQUAL "auto")
IF(PKG_CONFIG_FOUND)
IF(WITH_SYSTEMD STREQUAL "yes")
pkg_search_module(LIBSYSTEMD REQUIRED libsystemd libsystemd-daemon)
ELSE()
pkg_search_module(LIBSYSTEMD libsystemd libsystemd-daemon)
ENDIF()
IF(HAVE_DLOPEN)
SET(LIBSYSTEMD ${LIBSYSTEMD_LIBRARIES})
#SET(CMAKE_REQUIRED_FLAGS ${LIBSYSTEMD_CFLAGS})
SET(MYSQLD_LINK_FLAGS "${MYSQLD_LINK_FLAGS} ${LIBSYSTEMD_LDFLAGS}")
ELSE()
SET(LIBSYSTEMD ${LIBSYSTEMD_STATIC_LIBRARIES})
#SET(CMAKE_REQUIRED_FLAGS ${LIBSYSTEMD_STATIC_CFLAGS})
SET(MYSQLD_LINK_FLAGS "${MYSQLD_LINK_FLAGS} ${LIBSYSTEMD_STATIC_LDFLAGS}")
ENDIF()
ELSE()
SET(LIBSYSTEMD systemd)
ENDIF()
SET(CMAKE_REQUIRED_LIBRARIES ${LIBSYSTEMD})
CHECK_C_SOURCE_COMPILES(
"
#include <systemd/sd-daemon.h>
int main()
{
sd_listen_fds(0);
}"
HAVE_SYSTEMD)
CHECK_INCLUDE_FILES(systemd/sd-daemon.h HAVE_SYSTEMD_SD_DAEMON_H)
CHECK_FUNCTION_EXISTS(sd_listen_fds HAVE_SYSTEMD_SD_LISTEN_FDS)
CHECK_FUNCTION_EXISTS(sd_notify HAVE_SYSTEMD_SD_NOTIFY)
CHECK_FUNCTION_EXISTS(sd_notifyf HAVE_SYSTEMD_SD_NOTIFYF)
SET(CMAKE_REQUIRED_LIBRARIES)
IF(HAVE_SYSTEMD AND HAVE_SYSTEMD_SD_DAEMON_H AND HAVE_SYSTEMD_SD_LISTEN_FDS
AND HAVE_SYSTEMD_SD_NOTIFY AND HAVE_SYSTEMD_SD_NOTIFYF)
ADD_DEFINITIONS(-DHAVE_SYSTEMD)
SET(SYSTEMD_SCRIPTS mariadb-service-convert galera_new_cluster galera_recovery)
IF(DEB)
SET(SYSTEMD_EXECSTARTPRE "ExecStartPre=/usr/bin/install -m 755 -o mysql -g root -d /var/run/mysqld")
SET(SYSTEMD_EXECSTARTPOST "ExecStartPost=/etc/mysql/debian-start")
ENDIF()
MESSAGE_ONCE(systemd "Systemd features enabled")
ELSE()
UNSET(LIBSYSTEMD)
UNSET(HAVE_SYSTEMD)
UNSET(HAVE_SYSTEMD_SD_DAEMON_H)
UNSET(HAVE_SYSTEMD_SD_LISTEN_FDS)
UNSET(HAVE_SYSTEMD_SD_NOTIFY)
UNSET(HAVE_SYSTEMD_SD_NOTIFYF)
MESSAGE_ONCE(systemd "Systemd features not enabled")
IF(WITH_SYSTEMD STREQUAL "yes")
MESSAGE(FATAL_ERROR "Requested WITH_SYSTEMD=yes however no dependencies installed/found")
ENDIF()
ENDIF()
ELSEIF(NOT WITH_SYSTEMD STREQUAL "no")
MESSAGE(FATAL_ERROR "Invalid value for WITH_SYSTEMD. Must be 'yes', 'no', or 'auto'.")
ENDIF()
ENDIF()
ENDMACRO()
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