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| cmake_minimum_required(VERSION 3.5) | ||
| project(MQTT-C VERSION 1.1.2 LANGUAGES C) | ||
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| # MQTT-C build options | ||
| option(MQTT_C_OpenSSL_SUPPORT "Build MQTT-C with OpenSSL support?" OFF) | ||
| option(MQTT_C_MbedTLS_SUPPORT "Build MQTT-C with mbed TLS support?" OFF) | ||
| option(MQTT_C_BearSSL_SUPPORT "Build MQTT-C with Bear SSL support?" OFF) | ||
| option(MQTT_C_EXAMPLES "Build MQTT-C examples?" ON) | ||
| option(MQTT_C_INSTALL_EXAMPLES "Install MQTT-C examples?" OFF) | ||
| option(MQTT_C_TESTS "Build MQTT-C tests?" OFF) | ||
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||
| list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake) | ||
| set(CMAKE_POSITION_INDEPENDENT_CODE ON) | ||
|
|
||
| # MQTT-C library | ||
| add_library(mqttc STATIC | ||
| src/mqtt_pal.c | ||
| src/mqtt.c | ||
| ) | ||
| target_include_directories(mqttc PUBLIC include) | ||
| target_link_libraries(mqttc PUBLIC | ||
| $<$<C_COMPILER_ID:MSVC>:ws2_32> | ||
| ) | ||
|
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||
| if(MQTT_C_BearSSL_SUPPORT) | ||
| set(bearssl_root "$ENV{BEARSSL_ROOT}") | ||
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| set(bearssl_include "${bearssl_root}/include") | ||
| find_file(bearinc NAMES bearssl.h PATHS "${bearssl_include}") | ||
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||
| if ("${bearinc}" STREQUAL "bearinc-NOTFOUND") | ||
| MESSAGE(FATAL_ERROR "BEARSSL_ROOT does not contain include/bearssl.h") | ||
| endif() | ||
|
|
||
| set(bearssl_lib "${bearssl_root}/lib") | ||
| find_library(bearlib NAMES libbearssl.a bearssl.lib PATHS "{bearssl_lib}") | ||
|
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||
| if("${bearlib}" STREQUAL "bearlib-NOTFOUND") | ||
| MESSAGE(FATAL_ERROR "BEARSSL_ROOT does not contain lib with bearssl library") | ||
| endif() | ||
|
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||
| get_filename_component(bearinc "${bearinc}" DIRECTORY) | ||
| get_filename_component(bearlib2 "${bearlib}" DIRECTORY) | ||
|
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| target_include_directories(mqttc PUBLIC bearsslinc) | ||
| target_link_libraries(mqttc INTERFACE "${bearlib}") | ||
| target_compile_definitions(mqttc PUBLIC MQTT_USE_BEARSSL) | ||
| endif() | ||
|
|
||
| # Configure with OpenSSL support | ||
| if(MQTT_C_OpenSSL_SUPPORT) | ||
| find_package(OpenSSL REQUIRED) | ||
| target_link_libraries(mqttc INTERFACE OpenSSL::SSL) | ||
| target_include_directories(mqttc PUBLIC ${OPENSSL_INCLUDE_DIR}) | ||
| target_compile_definitions(mqttc PUBLIC MQTT_USE_BIO) | ||
| endif() | ||
|
|
||
| # Configure with mbed TLS support | ||
| if(MQTT_C_MbedTLS_SUPPORT) | ||
| find_package(MbedTLS REQUIRED) | ||
| target_include_directories(mqttc PUBLIC ${MBEDTLS_INCLUDE_DIRS}) | ||
| target_link_libraries(mqttc INTERFACE ${MBEDTLS_LIBRARY}) | ||
| target_compile_definitions(mqttc PUBLIC MQTT_USE_MBEDTLS) | ||
| endif() | ||
|
|
||
| # Build examples | ||
| if(MQTT_C_EXAMPLES) | ||
| find_package(Threads REQUIRED) | ||
|
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||
| if(MQTT_C_OpenSSL_SUPPORT) | ||
| if(MSVC) | ||
| add_executable(bio_publisher examples/bio_publisher_win.c) | ||
| add_executable(openssl_publisher examples/openssl_publisher_win.c) | ||
| else() | ||
| add_executable(bio_publisher examples/bio_publisher.c) | ||
| add_executable(openssl_publisher examples/openssl_publisher.c) | ||
| endif() | ||
| if(MQTT_C_INSTALL_EXAMPLES) | ||
| install(TARGETS bio_publisher openssl_publisher) | ||
| endif() | ||
| target_link_libraries(bio_publisher Threads::Threads mqttc) | ||
| target_link_libraries(openssl_publisher Threads::Threads mqttc) | ||
|
|
||
| elseif(MQTT_C_MbedTLS_SUPPORT) | ||
| add_executable(mbedtls_publisher examples/mbedtls_publisher.c) | ||
| target_link_libraries(mbedtls_publisher Threads::Threads mqttc ${MBEDX509_LIBRARY} ${MBEDCRYPTO_LIBRARY}) | ||
| if(MQTT_C_INSTALL_EXAMPLES) | ||
| install(TARGETS mbedtls_publisher) | ||
| endif() | ||
|
|
||
| elseif(MQTT_C_BearSSL_SUPPORT) | ||
| add_executable(bearssl_publisher examples/bearssl_publisher.c) | ||
| target_link_libraries(bearssl_publisher mqttc bearssl) | ||
| if(MQTT_C_INSTALL_EXAMPLES) | ||
| install(TARGETS bearssl_publisher) | ||
| endif() | ||
| else() | ||
| add_executable(simple_publisher examples/simple_publisher.c) | ||
| target_link_libraries(simple_publisher Threads::Threads mqttc) | ||
| if(MQTT_C_INSTALL_EXAMPLES) | ||
| install(TARGETS simple_publisher) | ||
| endif() | ||
| endif() | ||
|
|
||
| # Always install subscriber targets | ||
| add_executable(simple_subscriber examples/simple_subscriber.c) | ||
| target_link_libraries(simple_subscriber Threads::Threads mqttc) | ||
| add_executable(reconnect_subscriber examples/reconnect_subscriber.c) | ||
| target_link_libraries(reconnect_subscriber Threads::Threads mqttc) | ||
| if(MQTT_C_INSTALL_EXAMPLES) | ||
| install(TARGETS simple_subscriber reconnect_subscriber) | ||
| endif() | ||
| endif() | ||
|
|
||
| # Build tests | ||
| if(MQTT_C_TESTS) | ||
| find_path(CMOCKA_INCLUDE_DIR cmocka.h) | ||
| find_library(CMOCKA_LIBRARY cmocka) | ||
| if((NOT CMOCKA_INCLUDE_DIR) OR (NOT CMOCKA_LIBRARY)) | ||
| message(FATAL_ERROR "Failed to find cmocka! Add cmocka's install prefix to CMAKE_PREFIX_PATH to resolve this error.") | ||
| endif() | ||
|
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||
| add_executable(tests tests.c) | ||
| target_link_libraries(tests ${CMOCKA_LIBRARY} mqttc) | ||
| target_include_directories(tests PRIVATE ${CMOCKA_INCLUDE_DIR}) | ||
| endif() | ||
|
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||
| # Handle multi-lib linux systems correctly and allow custom installation locations. | ||
| if(UNIX) | ||
| include(GNUInstallDirs) | ||
| mark_as_advanced(CLEAR | ||
| CMAKE_INSTALL_BINDIR | ||
| CMAKE_INSTALL_LIBDIR | ||
| CMAKE_INSTALL_INCLUDEDIR) | ||
| else() | ||
| set(CMAKE_INSTALL_LIBDIR "lib") | ||
| set(CMAKE_INSTALL_INCLUDEDIR "include") | ||
| endif() | ||
|
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||
| # Install includes and library | ||
| install(TARGETS mqttc | ||
| DESTINATION ${CMAKE_INSTALL_LIBDIR} | ||
| ) | ||
| install(DIRECTORY include/ | ||
| DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) |
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