1# Copyright 2022 gRPC authors. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15set(gRPC_USE_SYSTEMD "AUTO" CACHE STRING "Build with libsystemd support if available. Can be ON, OFF or AUTO") 16 17if (NOT gRPC_USE_SYSTEMD STREQUAL "OFF") 18 if (gRPC_USE_SYSTEMD STREQUAL "ON") 19 find_package(systemd REQUIRED) 20 elseif (gRPC_USE_SYSTEMD STREQUAL "AUTO") 21 find_package(systemd) 22 else() 23 message(FATAL_ERROR "Unknown value for gRPC_USE_SYSTEMD = ${gRPC_USE_SYSTEMD}") 24 endif() 25 26 if(TARGET systemd) 27 set(_gRPC_SYSTEMD_LIBRARIES systemd ${SYSTEMD_LINK_LIBRARIES}) 28 add_definitions(-DHAVE_LIBSYSTEMD) 29 endif() 30 set(_gRPC_FIND_SYSTEMD "if(NOT systemd_FOUND)\n find_package(systemd)\nendif()") 31endif() 32