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-rw-r--r--libevent/cmake/AddEventLibrary.cmake193
1 files changed, 193 insertions, 0 deletions
diff --git a/libevent/cmake/AddEventLibrary.cmake b/libevent/cmake/AddEventLibrary.cmake
new file mode 100644
index 0000000..04f5837
--- /dev/null
+++ b/libevent/cmake/AddEventLibrary.cmake
@@ -0,0 +1,193 @@
+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()
+
+# LIB_NAME maybe event_core, event_extra, event_openssl, event_pthreads or event.
+# Targets whose LIB_NAME is not 'event' should be exported and installed.
+macro(export_install_target TYPE LIB_NAME OUTER_INCLUDES)
+ if("${LIB_NAME}" STREQUAL "event")
+ install(TARGETS "${LIB_NAME}_${TYPE}"
+ LIBRARY DESTINATION "lib" COMPONENT lib
+ ARCHIVE DESTINATION "lib" COMPONENT lib
+ RUNTIME DESTINATION "lib" COMPONENT lib
+ COMPONENT dev
+ )
+ else()
+ string(REPLACE "event_" "" PURE_NAME ${LIB_NAME})
+ string(TOUPPER ${TYPE} UPPER_TYPE)
+ list(APPEND LIBEVENT_${UPPER_TYPE}_LIBRARIES "${PURE_NAME}")
+ set(OUTER_INCS)
+ if (NOT "${OUTER_INCLUDES}" STREQUAL "NONE")
+ set(OUTER_INCS ${OUTER_INCLUDES})
+ endif()
+ target_include_directories("${LIB_NAME}_${TYPE}"
+ PUBLIC "$<INSTALL_INTERFACE:include>"
+ "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
+ "$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>"
+ ${OUTER_INCS}
+ )
+ set_target_properties("${LIB_NAME}_${TYPE}" PROPERTIES EXPORT_NAME ${PURE_NAME})
+ export(TARGETS "${LIB_NAME}_${TYPE}"
+ NAMESPACE ${PROJECT_NAME}::
+ FILE "${PROJECT_BINARY_DIR}/LibeventTargets-${TYPE}.cmake"
+ APPEND
+ )
+ install(TARGETS "${LIB_NAME}_${TYPE}"
+ EXPORT LibeventTargets-${TYPE}
+ LIBRARY DESTINATION "lib" COMPONENT lib
+ ARCHIVE DESTINATION "lib" COMPONENT lib
+ RUNTIME DESTINATION "lib" COMPONENT lib
+ COMPONENT dev
+ )
+ endif()
+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
+# - 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;INNER_LIBRARIES;OUTER_INCLUDES" # Multi val
+ ${ARGN}
+ )
+
+ if ("${LIB_OUTER_INCLUDES}" STREQUAL "")
+ set(LIB_OUTER_INCLUDES NONE)
+ endif()
+ 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 "${LIB_NAME}"
+ CLEAN_DIRECT_OUTPUT 1)
+
+ if(LIB_INNER_LIBRARIES)
+ set(INNER_LIBRARIES "${LIB_INNER_LIBRARIES}_static")
+ endif()
+ target_link_libraries("${LIB_NAME}_static"
+ ${CMAKE_THREAD_LIBS_INIT}
+ ${LIB_PLATFORM}
+ ${INNER_LIBRARIES}
+ ${LIB_LIBRARIES})
+
+ export_install_target(static "${LIB_NAME}" "${LIB_OUTER_INCLUDES}")
+
+ set(ADD_EVENT_LIBRARY_INTERFACE "${LIB_NAME}_static")
+ endif()
+
+ if (${EVENT_LIBRARY_SHARED})
+ add_library("${LIB_NAME}_shared" SHARED ${LIB_SOURCES})
+
+ if(LIB_INNER_LIBRARIES)
+ set(INNER_LIBRARIES "${LIB_INNER_LIBRARIES}_shared")
+ endif()
+ target_link_libraries("${LIB_NAME}_shared"
+ ${CMAKE_THREAD_LIBS_INIT}
+ ${LIB_PLATFORM}
+ ${INNER_LIBRARIES}
+ ${LIB_LIBRARIES})
+
+ if (EVENT_SHARED_FLAGS)
+ set_event_shared_lib_flags("${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 "${CURRENT_MINUS_AGE}"
+ INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+ endif()
+
+ 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 "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
+ endif()
+
+ export_install_target(shared "${LIB_NAME}" "${LIB_OUTER_INCLUDES}")
+
+ set(ADD_EVENT_LIBRARY_INTERFACE "${LIB_NAME}_shared")
+
+ if (NOT WIN32)
+ install(FILES
+ "$<TARGET_FILE_DIR:${LIB_NAME}_shared>/${LIB_LINK_NAME}"
+ DESTINATION "lib"
+ COMPONENT lib)
+ endif()
+ endif()
+
+ add_library(${LIB_NAME} INTERFACE)
+ target_link_libraries(${LIB_NAME} INTERFACE ${ADD_EVENT_LIBRARY_INTERFACE})
+
+ generate_pkgconfig("${LIB_NAME}")
+endmacro()