kc3-lang/libevent/cmake/AddEventLibrary.cmake
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Hash : 305251b9
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Date : 2019-07-10T00:30:12
cmake: set library names to be the same as with autotools libtool has VERSION_INFO [1], cmake has SOVERSION/VERSION instead (although it has different format). Also libtool has RELEASE [2] while cmake do not have analog yet [3], hence manual symlinks should be created. [1]: https://www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html [2]: https://www.gnu.org/software/libtool/manual/html_node/Release-numbers.html [3]: https://gitlab.kitware.com/cmake/cmake/issues/17652 Plus osx has compatibility_version/current_version dylib properties and cmake do not have separate properties for them [4], hence manual LINK_FLAGS. And also there INSTALL_NAME_DIR property which should be adjusted too. [4]: https://public.kitware.com/Bug/view.php?id=4383 So after all changes, here is an example before/after for osx and linux: # osx # autotools .libs/libevent_pthreads-2.2.1.dylib .libs/libevent_pthreads.dylib -> libevent_pthreads-2.2.1.dylib /usr/local/lib/libevent_pthreads-2.2.1.dylib (compatibility version 2.0.0, current version 2.0.0) # cmake # before patch lib/libevent_pthreads.2.2.0.dylib lib/libevent_pthreads.dylib -> libevent_pthreads.2.2.0.dylib @rpath/libevent_pthreads.2.2.0.dylib (compatibility version 2.2.0, current version 0.0.0) # after patch lib/libevent_pthreads-2.2.1.dylib lib/libevent_pthreads.dylib -> libevent_pthreads-2.2.1.dylib /vagrant/.cmake/inst/lib/libevent_pthreads-2.2.1.dylib (compatibility version 2.0.0, current version 2.0.0) # linux # autotools .libs/libevent_pthreads-2.2.so.1 -> libevent_pthreads-2.2.so.1.0.0 .libs/libevent_pthreads-2.2.so.1.0.0 .libs/libevent_pthreads.so -> libevent_pthreads-2.2.so.1.0.0 # cmake # before patch lib/libevent_pthreads.so -> libevent_pthreads.so.2.2.0 lib/libevent_pthreads.so.2.2.0 # after patch lib/libevent_pthreads-2.2.so -> libevent_pthreads-2.2.so.1 lib/libevent_pthreads-2.2.so.1 -> libevent_pthreads-2.2.so.1.0.0 lib/libevent_pthreads-2.2.so.1.0.0 lib/libevent_pthreads.so -> libevent_pthreads-2.2.so.1.0.0 Closes: #838 (cherry-picked) Closes: #760 (cherry picked from commit 669a53f341e192657140952cfe025c260da2b1c1)
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cmake/AddEventLibrary.cmake
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include(CMakeParseArguments) set(LIBEVENT_SHARED_LIBRARIES "") set(LIBEVENT_STATIC_LIBRARIES "") macro(set_event_shared_lib_flags LIB_NAME) set_target_properties("${LIB_NAME}_shared" PROPERTIES COMPILE_FLAGS ${ARGN}) set_target_properties("${LIB_NAME}_shared" PROPERTIES LINK_FLAGS ${ARGN}) endmacro() macro(generate_pkgconfig LIB_NAME) set(prefix ${CMAKE_INSTALL_PREFIX}) set(exec_prefix ${CMAKE_INSTALL_PREFIX}) set(libdir ${CMAKE_INSTALL_PREFIX}/lib) set(includedir ${CMAKE_INSTALL_PREFIX}/include) set(VERSION ${EVENT_ABI_LIBVERSION}) set(LIBS "") foreach (LIB ${LIB_PLATFORM}) set(LIBS "${LIBS} -L${LIB}") endforeach() set(OPENSSL_LIBS "") foreach(LIB ${OPENSSL_LIBRARIES}) set(OPENSSL_LIBS "${OPENSSL_LIBS} -L${LIB}") endforeach() configure_file("lib${LIB_NAME}.pc.in" "lib${LIB_NAME}.pc" @ONLY) install( FILES "${CMAKE_CURRENT_BINARY_DIR}/lib${LIB_NAME}.pc" DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig" ) endmacro() # Global variables that it uses: # - EVENT_ABI_LIBVERSION # - EVENT_ABI_LIBVERSION_CURRENT # - EVENT_ABI_LIBVERSION_REVISION # - EVENT_ABI_LIBVERSION_AGE # - EVENT_PACKAGE_RELEASE # - CMAKE_THREAD_LIBS_INIT LIB_PLATFORM # - OPENSSL_LIBRARIES # - HDR_PUBLIC # - EVENT_INSTALL_INCLUDE_DIR # - EVENT_SHARED_FLAGS # - EVENT_LIBRARY_STATIC # - EVENT_LIBRARY_SHARED # # Exported variables: # - LIBEVENT_SHARED_LIBRARIES # - LIBEVENT_STATIC_LIBRARIES macro(add_event_library LIB_NAME) cmake_parse_arguments(LIB "" # Options "VERSION" # One val "SOURCES;LIBRARIES" # Multi val ${ARGN} ) set(ADD_EVENT_LIBRARY_TARGETS) set(ADD_EVENT_LIBRARY_INTERFACE) if (${EVENT_LIBRARY_STATIC}) add_library("${LIB_NAME}_static" STATIC ${LIB_SOURCES}) set_target_properties("${LIB_NAME}_static" PROPERTIES OUTPUT_NAME "${LIB_NAME}" CLEAN_DIRECT_OUTPUT 1) set_target_properties( "${LIB_NAME}_static" PROPERTIES PUBLIC_HEADER "${HDR_PUBLIC}") list(APPEND LIBEVENT_STATIC_LIBRARIES "${LIB_NAME}_static") list(APPEND ADD_EVENT_LIBRARY_TARGETS "${LIB_NAME}_static") set(ADD_EVENT_LIBRARY_INTERFACE "${LIB_NAME}_static") endif() if (${EVENT_LIBRARY_SHARED}) add_library("${LIB_NAME}_shared" SHARED ${LIB_SOURCES}) target_link_libraries("${LIB_NAME}_shared" ${CMAKE_THREAD_LIBS_INIT} ${LIB_PLATFORM} ${LIB_LIBRARIES}) if (EVENT_SHARED_FLAGS) set_event_shared_lib_flags("${LIB_NAME}" "${EVENT_SHARED_FLAGS}") endif() if (WIN32) set_target_properties( "${LIB_NAME}_shared" PROPERTIES OUTPUT_NAME "${LIB_NAME}" SOVERSION ${EVENT_ABI_LIBVERSION}) elseif (APPLE) math(EXPR COMPATIBILITY_VERSION "${EVENT_ABI_LIBVERSION_CURRENT}+1") math(EXPR CURRENT_MINUS_AGE "${EVENT_ABI_LIBVERSION_CURRENT}-${EVENT_ABI_LIBVERSION_AGE}") set_target_properties( "${LIB_NAME}_shared" PROPERTIES OUTPUT_NAME "${LIB_NAME}-${EVENT_PACKAGE_RELEASE}.${CURRENT_MINUS_AGE}" INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/lib" LINK_FLAGS "-compatibility_version ${COMPATIBILITY_VERSION} -current_version ${COMPATIBILITY_VERSION}.${EVENT_ABI_LIBVERSION_REVISION}") else() math(EXPR CURRENT_MINUS_AGE "${EVENT_ABI_LIBVERSION_CURRENT}-${EVENT_ABI_LIBVERSION_AGE}") set_target_properties( "${LIB_NAME}_shared" PROPERTIES OUTPUT_NAME "${LIB_NAME}-${EVENT_PACKAGE_RELEASE}" VERSION "${CURRENT_MINUS_AGE}.${EVENT_ABI_LIBVERSION_AGE}.${EVENT_ABI_LIBVERSION_REVISION}" SOVERSION "${CURRENT_MINUS_AGE}") endif() set_target_properties( "${LIB_NAME}_shared" PROPERTIES PUBLIC_HEADER "${HDR_PUBLIC}" CLEAN_DIRECT_OUTPUT 1) if (NOT WIN32) set(LIB_LINK_NAME "${CMAKE_SHARED_LIBRARY_PREFIX}${LIB_NAME}${CMAKE_SHARED_LIBRARY_SUFFIX}") add_custom_command(TARGET ${LIB_NAME}_shared POST_BUILD COMMAND ${CMAKE_COMMAND} -E create_symlink "$<TARGET_FILE_NAME:${LIB_NAME}_shared>" "${LIB_LINK_NAME}" WORKING_DIRECTORY "lib") endif() list(APPEND LIBEVENT_SHARED_LIBRARIES "${LIB_NAME}_shared") list(APPEND ADD_EVENT_LIBRARY_TARGETS "${LIB_NAME}_shared") set(ADD_EVENT_LIBRARY_INTERFACE "${LIB_NAME}_shared") endif() export(TARGETS ${ADD_EVENT_LIBRARY_TARGETS} FILE "${PROJECT_BINARY_DIR}/LibeventTargets.cmake" APPEND ) install(TARGETS ${ADD_EVENT_LIBRARY_TARGETS} EXPORT LibeventTargets LIBRARY DESTINATION "lib" COMPONENT lib ARCHIVE DESTINATION "lib" COMPONENT lib RUNTIME DESTINATION "lib" COMPONENT lib PUBLIC_HEADER DESTINATION "include/event2" COMPONENT dev ) if (NOT WIN32 AND ${EVENT_LIBRARY_SHARED}) install(FILES "$<TARGET_FILE_DIR:${LIB_NAME}_shared>/${LIB_LINK_NAME}" DESTINATION "lib" COMPONENT lib) endif() add_library(${LIB_NAME} INTERFACE) target_link_libraries(${LIB_NAME} INTERFACE ${ADD_EVENT_LIBRARY_INTERFACE}) generate_pkgconfig("${LIB_NAME}") endmacro()