CMakeLists.txt

cmake_minimum_required(VERSION 3.1)

include(${CMAKE_CURRENT_LIST_DIR}/third_party/coreHTTP/httpFilePaths.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/third_party/coreMQTT/mqttFilePaths.cmake)

if (DEFINED ENV{IDF_PATH})
  file(GLOB ESP32_CODES "./src/*.c")
  idf_component_register(
   SRCS ${ESP32_CODES} ${HTTP_SOURCES} ${MQTT_SOURCES} ${MQTT_SERIALIZER_SOURCES}
   INCLUDE_DIRS "./src" ${HTTP_INCLUDE_PUBLIC_DIRS} ${MQTT_INCLUDE_PUBLIC_DIRS}
   REQUIRES mbedtls srtp json esp_netif
  )
  add_definitions("-DESP32 -DHTTP_DO_NOT_USE_CUSTOM_CONFIG -DMQTT_DO_NOT_USE_CUSTOM_CONFIG")
  return()
endif()

project(peer)

option(ENABLE_TESTS "Enable tests" OFF)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)

include(ExternalProject)

include_directories(${CMAKE_BINARY_DIR}/dist/include ${CMAKE_BINARY_DIR}/dist/include/cjson)

link_directories(${CMAKE_BINARY_DIR}/dist/lib)

set(DEP_LIBS "srtp2" "usrsctp" "mbedtls" "mbedcrypto" "mbedx509" "cjson")
# Extended debug information (symbols, source code, and macro definitions)
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g3")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g3")

add_definitions("-Wunused-variable -Werror=sequence-point -Werror=pointer-sign -Werror=return-type -Werror=sizeof-pointer-memaccess -Wincompatible-pointer-types -DHTTP_DO_NOT_USE_CUSTOM_CONFIG -DMQTT_DO_NOT_USE_CUSTOM_CONFIG")

add_subdirectory(src)
add_subdirectory(examples)

if(ENABLE_TESTS)
  add_subdirectory(tests)
endif()

ExternalProject_Add(cjson
  SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/cJSON
  CMAKE_ARGS
    -DCMAKE_C_FLAGS="-fPIC"
    -DBUILD_SHARED_LIBS=off
    -DENABLE_CJSON_TEST=off
    -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/dist
    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
)

ExternalProject_Add(mbedtls
  SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/mbedtls
  CMAKE_ARGS
    -DCMAKE_C_FLAGS="-fPIC"
    -DENABLE_TESTING=off
    -DENABLE_PROGRAMS=off
    -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/dist
    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
)
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/third_party/mbedtls/include/mbedtls/mbedtls_config.h INPUT_CONTENT)
string(REPLACE "//#define MBEDTLS_SSL_DTLS_SRTP" "#define MBEDTLS_SSL_DTLS_SRTP" MODIFIED_CONTENT ${INPUT_CONTENT})
file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/third_party/mbedtls/include/mbedtls/mbedtls_config.h ${MODIFIED_CONTENT})

ExternalProject_Add(srtp2
  SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/libsrtp
  CMAKE_ARGS
    -DCMAKE_C_FLAGS="-fPIC"
    -DTEST_APPS=off
    -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/dist
    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
)

ExternalProject_Add(usrsctp
  SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/usrsctp
  CMAKE_ARGS
    -DCMAKE_C_FLAGS="-fPIC"
    -Dsctp_build_programs=off
    -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/dist
    -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
)