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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()
# 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()