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cmake: add export() and install(EXPORT) for easier packageability (#190)

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* cmake: add export() and install(EXPORT) for easier packageability

Enable the package to be more readily packageable as a system-wide
install or as a third-party dependency to another CMake-base project

This does not change CMake version requirements AFAICT

* CMake: link-in OpenSSL::Crypto
This commit is contained in:
ebenali 2020-05-02 20:20:59 -07:00 committed by GitHub
parent b34d9f6a06
commit 1096f62196
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 8 deletions
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19
CMakeLists.txt
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@ -144,6 +144,8 @@ add_library( ixwebsocket STATIC
${IXWEBSOCKET_HEADERS} ${IXWEBSOCKET_HEADERS}
) )
add_library ( ixwebsocket::ixwebsocket ALIAS ixwebsocket )
if (USE_TLS) if (USE_TLS)
target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_TLS) target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_TLS)
if (USE_MBED_TLS) if (USE_MBED_TLS)
@ -169,13 +171,11 @@ if (USE_TLS)
# This OPENSSL_FOUND check is to help find a cmake manually configured OpenSSL # This OPENSSL_FOUND check is to help find a cmake manually configured OpenSSL
if (NOT OPENSSL_FOUND) if (NOT OPENSSL_FOUND)
find_package(OpenSSL REQUIRED) include(FindOpenSSL)
endif() endif()
message(STATUS "OpenSSL: " ${OPENSSL_VERSION}) message(STATUS "OpenSSL: " ${OPENSSL_VERSION})
add_definitions(${OPENSSL_DEFINITIONS}) target_link_libraries(ixwebsocket OpenSSL::SSL OpenSSL::Crypto)
target_include_directories(ixwebsocket PUBLIC ${OPENSSL_INCLUDE_DIR})
target_link_libraries(ixwebsocket ${OPENSSL_LIBRARIES})
elseif (USE_MBED_TLS) elseif (USE_MBED_TLS)
message(STATUS "TLS configured to use mbedtls") message(STATUS "TLS configured to use mbedtls")
@ -225,15 +225,18 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
target_compile_options(ixwebsocket PRIVATE /MP) target_compile_options(ixwebsocket PRIVATE /MP)
endif() endif()
target_include_directories(ixwebsocket PUBLIC ${IXWEBSOCKET_INCLUDE_DIRS}) target_include_directories(ixwebsocket PUBLIC $<BUILD_INTERFACE:${IXWEBSOCKET_INCLUDE_DIRS}> $<INSTALL_INTERFACE:include/ixwebsocket>)
set_target_properties(ixwebsocket PROPERTIES PUBLIC_HEADER "${IXWEBSOCKET_HEADERS}") set_target_properties(ixwebsocket PROPERTIES PUBLIC_HEADER "${IXWEBSOCKET_HEADERS}")
install(TARGETS ixwebsocket install(TARGETS ixwebsocket EXPORT ixwebsocket
ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_PREFIX}/include/ixwebsocket/ PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_PREFIX}/include/ixwebsocket/
) )
install(EXPORT ixwebsocket NAMESPACE ixwebsocket:: DESTINATION lib/cmake/ixwebsocket)
export(EXPORT ixwebsocket NAMESPACE ixwebsocket:: FILE ixwebsocketConfig.cmake)
if (USE_WS OR USE_TEST) if (USE_WS OR USE_TEST)
add_subdirectory(ixcore) add_subdirectory(ixcore)
add_subdirectory(ixcrypto) add_subdirectory(ixcrypto)