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cmake: make package config relocatable

This commit is contained in:
Sergiu Deitsch 2021-10-14 17:06:36 +02:00
parent 2f30903ca2
commit eb9100bf41
3 changed files with 17 additions and 15 deletions
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3
CMakeLists.txt
View File

@ -125,6 +125,9 @@ string(SUBSTRING ${VERSION} 0 1 GENERIC_LIB_SOVERSION)
include(CheckCXXCompilerFlag)
include(AddCXXCompilerFlag)
include(CXXFeatureCheck)
include(CheckLibraryExists)
check_library_exists(rt shm_open "" HAVE_LIB_RT)
if (BENCHMARK_BUILD_32_BITS)
add_required_cxx_compiler_flag(-m32)

4
cmake/Config.cmake.in
View File

@ -1 +1,5 @@
include (CMakeFindDependencyMacro)
find_dependency (Threads)
include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake")

25
src/CMakeLists.txt
View File

@ -29,33 +29,28 @@ target_include_directories(benchmark PUBLIC
# libpfm, if available
if (HAVE_LIBPFM)
target_link_libraries(benchmark libpfm.a)
target_link_libraries(benchmark PRIVATE pfm)
add_definitions(-DHAVE_LIBPFM)
endif()
# Link threads.
target_link_libraries(benchmark ${BENCHMARK_CXX_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
find_library(LIBRT rt)
if(LIBRT)
target_link_libraries(benchmark ${LIBRT})
endif()
target_link_libraries(benchmark PRIVATE Threads::Threads)
target_link_libraries(benchmark PRIVATE ${BENCHMARK_CXX_LIBRARIES})
if(HAVE_LIB_RT)
target_link_libraries(benchmark PRIVATE rt)
endif(HAVE_LIB_RT)
if(CMAKE_BUILD_TYPE)
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_UPPER)
endif()
if(NOT CMAKE_THREAD_LIBS_INIT AND "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE_UPPER}}" MATCHES ".*-fsanitize=[^ ]*address.*")
message(WARNING "CMake's FindThreads.cmake did not fail, but CMAKE_THREAD_LIBS_INIT ended up being empty. This was fixed in https://github.com/Kitware/CMake/commit/d53317130e84898c5328c237186dbd995aaf1c12 Let's guess that -pthread is sufficient.")
target_link_libraries(benchmark -pthread)
endif()
# We need extra libraries on Windows
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
target_link_libraries(benchmark shlwapi)
target_link_libraries(benchmark PRIVATE shlwapi)
endif()
# We need extra libraries on Solaris
if(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
target_link_libraries(benchmark kstat)
target_link_libraries(benchmark PRIVATE kstat)
endif()
# Benchmark main library