# Copyright 2017 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
if ( gRPC_CARES_PROVIDER STREQUAL "module" )
if ( NOT CARES_ROOT_DIR )
set ( CARES_ROOT_DIR ${ CMAKE_CURRENT_SOURCE_DIR } /third_party/cares/cares )
endif ( )
set ( CARES_SHARED OFF CACHE BOOL "disable shared library" )
set ( CARES_STATIC ON CACHE BOOL "link cares statically" )
if ( gRPC_BACKWARDS_COMPATIBILITY_MODE )
# See https://github.com/grpc/grpc/issues/17255
set ( HAVE_LIBNSL OFF CACHE BOOL "avoid cares dependency on libnsl" )
endif ( )
add_subdirectory ( "${CARES_ROOT_DIR}" third_party/cares/cares )
if ( TARGET c-ares )
set ( _gRPC_CARES_LIBRARIES c-ares )
if ( gRPC_INSTALL AND _gRPC_INSTALL_SUPPORTED_FROM_MODULE )
install ( TARGETS c-ares EXPORT gRPCTargets
R U N T I M E D E S T I N A T I O N $ { g R P C _ I N S T A L L _ B I N D I R }
L I B R A R Y D E S T I N A T I O N $ { g R P C _ I N S T A L L _ L I B D I R }
A R C H I V E D E S T I N A T I O N $ { g R P C _ I N S T A L L _ L I B D I R } )
endif ( )
endif ( )
if ( gRPC_INSTALL AND NOT _gRPC_INSTALL_SUPPORTED_FROM_MODULE )
message ( WARNING "gRPC_INSTALL will be forced to FALSE because gRPC_CARES_PROVIDER is \" module\ " and CMake version (${CMAKE_VERSION}) is less than 3.13." )
set ( gRPC_INSTALL FALSE )
endif ( )
elseif ( gRPC_CARES_PROVIDER STREQUAL "package" )
find_package ( c-ares 1.13.0 REQUIRED )
if ( TARGET c-ares::cares )
set ( _gRPC_CARES_LIBRARIES c-ares::cares )
endif ( )
set ( _gRPC_FIND_CARES "if(NOT c-ares_FOUND)\n find_package(c-ares)\nendif()" )
endif ( )