ceph/cmake/modules/Findc-ares.cmake
Kefu Chai c0ac7a2fc1 cmake: add c-ares::cares as a global visible library
to address the build failure like:

-- Checking for one of the modules 'libcares'
CMake Error at cmake/modules/BuildBoost.cmake:287 (_add_library):
  _add_library cannot create ALIAS target "c-ares::c-ares" because target
  "c-ares::cares" is imported but not globally visible.
Call Stack (most recent call first):
  cmake/modules/Findc-ares.cmake:31 (add_library)
  src/CMakeLists.txt:344 (find_package)

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
2022-11-29 21:42:26 +08:00

33 lines
831 B
CMake

find_package(PkgConfig QUIET)
pkg_search_module(PC_cares
libcares)
find_path(c-ares_INCLUDE_DIR
NAMES ares_dns.h
PATHS ${PC_cares_INCLUDE_DIRS})
find_library(c-ares_LIBRARY
NAMES cares
PATHS ${PC_cares_LIBRARY_DIRS})
set(c-ares_VERSION ${PC_cares_VERSION})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(c-ares
REQUIRED_VARS
c-ares_INCLUDE_DIR
c-ares_LIBRARY
VERSION_VAR c-ares_VERSION)
if(c-ares_FOUND AND NOT (TARGET c-ares::cares))
add_library(c-ares::cares UNKNOWN IMPORTED GLOBAL)
set_target_properties(c-ares::cares PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${c-ares_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${c-ares_LIBRARY}")
# to be compatible with old Seastar
add_library(c-ares::c-ares ALIAS c-ares::cares)
endif()