libwebsockets-CMakeLists.txt

cmake_minimum_required(VERSION 3.6.3)

project(libwebsocket-download NONE)

SET(PATCH_COMMAND git apply --verbose --ignore-whitespace ${CMAKE_CURRENT_LIST_DIR}/libwebsockets-old-gcc-fix-cast-cmakelists.patch)

include(ExternalProject)
if (BUILD_STATIC_LIBS)
  set(LWS_WITH_SHARED 0)
else()
  set(LWS_WITH_SHARED 1)
  if (USE_OPENSSL AND NOT WIN32)
    find_package(OpenSSL REQUIRED)
  endif()
endif()

if (USE_OPENSSL)
  set(LWS_WITH_MBEDTLS OFF)
else()
  set(LWS_WITH_MBEDTLS ON)
endif()

if (WIN32)
  set(LWS_WITH_THREADPOOL ${LWS_WITH_THREADPOOL})
  set(LWS_EXT_PTHREAD_INCLUDE_DIR ${LWS_EXT_PTHREAD_INCLUDE_DIR})
  set(LWS_EXT_PTHREAD_LIBRARIES ${LWS_EXT_PTHREAD_LIBRARIES})
  set(LWS_OPENSSL_INCLUDE_DIRS ${LWS_OPENSSL_INCLUDE_DIRS})
  set(LWS_OPENSSL_LIBRARIES ${LWS_OPENSSL_LIBRARIES})
endif()

ExternalProject_Add(project_libwebsockets
    GIT_REPOSITORY    https://github.com/warmcat/libwebsockets.git
    GIT_TAG           v4.3.3
    PATCH_COMMAND     ${PATCH_COMMAND}
    PREFIX            ${CMAKE_CURRENT_BINARY_DIR}/build
    LIST_SEPARATOR    |
    CMAKE_ARGS
        -DCMAKE_INSTALL_PREFIX=${OPEN_SRC_INSTALL_PREFIX}
        -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
        -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
        -DDISABLE_WERROR=ON
        -DLWS_WITH_HTTP2=1
        -DLWS_HAVE_HMAC_CTX_new=1
        -DLWS_HAVE_SSL_EXTRA_CHAIN_CERTS=1
        -DLWS_HAVE_OPENSSL_ECDH_H=1
        -DLWS_HAVE_EVP_MD_CTX_free=1
        -DLWS_WITHOUT_SERVER=1
        -DLWS_WITHOUT_TESTAPPS=1
        -DLWS_WITHOUT_TEST_SERVER_EXTPOLL=1
        -DLWS_WITHOUT_TEST_PING=1
        -DLWS_WITHOUT_TEST_CLIENT=1
        -DLWS_STATIC_PIC=1
        -DLWS_WITH_STATIC=1
        -DLWS_WITH_SHARED=${LWS_WITH_SHARED}
        -DLWS_WITH_MBEDTLS=${LWS_WITH_MBEDTLS}
        -DLWS_MBEDTLS_LIBRARIES=${LWS_MBEDTLS_LIBRARIES}
        -DLWS_MBEDTLS_INCLUDE_DIRS=${LWS_MBEDTLS_INCLUDE_DIRS}
        -DLWS_WITH_MINIMAL_EXAMPLES=1
        -DLWS_HAVE_PTHREAD_H=1 
        -DLWS_WITH_THREADPOOL=${LWS_WITH_THREADPOOL}
        -DLWS_WITH_ZLIB=0
        -DLWS_HAVE_EVENTFD=0
        -DLWS_EXT_PTHREAD_INCLUDE_DIR=${LWS_EXT_PTHREAD_INCLUDE_DIR}
        -DLWS_EXT_PTHREAD_LIBRARIES=${LWS_EXT_PTHREAD_LIBRARIES}
        -DLWS_OPENSSL_INCLUDE_DIRS=${LWS_OPENSSL_INCLUDE_DIRS}
        -DLWS_OPENSSL_LIBRARIES=${LWS_OPENSSL_LIBRARIES}
        -DLWS_WITH_IPV6=ON
    BUILD_ALWAYS      TRUE
    TEST_COMMAND      ""
)