libwebrtc/CMakeLists.txt
2017-02-05 19:17:38 +01:00

141 lines
4.3 KiB
CMake

cmake_minimum_required(VERSION 3.3)
project(libwebrtc)
#
# Allow the use of IN_LIST operand
cmake_policy(SET CMP0057 NEW)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
${CMAKE_SOURCE_DIR}/CMakeModules)
if (CMAKE_CONFIGURATION_TYPES)
set(CMAKE_CONFIGURATION_TYPES Debug Release)
endif (CMAKE_CONFIGURATION_TYPES)
#
# Required packages
find_package(Git REQUIRED)
find_package(DepotTools REQUIRED)
if (WIN32)
set(PYTHON_EXECUTABLE ${DEPOTTOOLS_PATH}/python.bat)
else (WIN32)
find_package(PythonInterp 2.7 REQUIRED)
endif (WIN32)
#
# Set the project's version
set(LIBWEBRTC_MAJOR_VERSION 0)
set(LIBWEBRTC_MINOR_VERSION 0)
set(LIBWEBRTC_PATCH_VERSION 1)
set(LIBWEBRTC_BUILD_VERSION -rc.4)
set(LIBWEBRTC_WEBRTC_REVISION ae2551232b5249e38298a50f2d9a64d3c862db00)
set(LIBWEBRTC_API_VERSION
"${LIBWEBRTC_MAJOR_VERSION}.${LIBWEBRTC_MINOR_VERSION}.${LIBWEBRTC_PATCH_VERSION}")
set(LIBWEBRTC_VERSION
${LIBWEBRTC_API_VERSION}${LIBWEBRTC_BUILD_VERSION})
#
# Options, flags
option(BUILD_TESTS "Build test binaries" OFF)
set(NINJA_ARGS "" CACHE STRING "Ninja arguments to pass before compiling WebRTC")
option(BUILD_SHARED_LIBS "Build WebRTC as a shared library." OFF)
if(BUILD_SHARED_LIBS)
set(LIBRARY_TYPE SHARED)
else()
set(LIBRARY_TYPE STATIC)
endif()
#
# Offer the user the choice of overriding the installation directories
set(INSTALL_LIB_DIR lib CACHE PATH "Installation directory for libraries")
set(INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
set(INSTALL_INCLUDE_DIR include CACHE PATH "Installation directory for header files")
set(INSTALL_CMAKE_DIR lib/cmake/LibWebRTC CACHE PATH "Installation directory for CMake files")
#
# Make relative paths absolute (needed later on)
foreach(p LIB BIN INCLUDE CMAKE)
set(var INSTALL_${p}_DIR)
if(NOT IS_ABSOLUTE "${${var}}")
set(${var} "${CMAKE_INSTALL_PREFIX}/${${var}}")
endif()
endforeach()
#
# Target OS
set(TARGET_OS "" CACHE STRING "Target OS, used as --target_os argument")
set(TARGET_OS_LIST android chromeos ios linux nacl mac win)
if (TARGET_OS STREQUAL "")
if (CMAKE_SYSTEM_NAME MATCHES "Linux")
set(TARGET_OS "linux")
elseif (CMAKE_SYSTEM_NAME MATCHES "Darwin")
set(TARGET_OS "mac")
elseif (CMAKE_SYSTEM_NAME MATCHES "Windows")
set(TARGET_OS "win")
endif ()
endif (TARGET_OS STREQUAL "")
if (NOT ${TARGET_OS} IN_LIST TARGET_OS_LIST)
message(FATAL_ERROR "Unknown value '${TARGET_OS}' for variable TARGET_OS, options are: ${TARGET_OS_LIST}")
endif (NOT ${TARGET_OS} IN_LIST TARGET_OS_LIST)
#
# Target CPU
set(TARGET_CPU "" CACHE STRING "Target CPU, used as --target_cpu argument")
set(TARGET_CPU_LIST x86 x64 arm arm64 mipsel)
if (TARGET_CPU STREQUAL "")
include(CheckSymbolExists)
if (WIN32)
check_symbol_exists("_M_X64" "" ARCH_X64)
if (NOT ARCH_X64)
check_symbol_exists("_M_AMD64" "" ARCH_X64)
if (NOT ARCH_X64)
check_symbol_exists("_M_IX86" "" ARCH_X86)
if (NOT ARCH_X86)
check_symbol_exists("_M_ARM" "" ARCH_ARM)
check_symbol_exists("_M_ARM64" "" ARCH_ARM64)
endif (NOT ARCH_X86)
endif (NOT ARCH_X64)
endif (NOT ARCH_X64)
else (WIN32)
check_symbol_exists("__i386__" "" ARCH_X86)
check_symbol_exists("__x86_64__" "" ARCH_X64)
check_symbol_exists("__arm__" "" ARCH_ARM)
check_symbol_exists("__aarch64__" "" ARCH_ARM64)
endif (WIN32)
if (ARCH_X86)
set(TARGET_CPU "x86")
elseif (ARCH_X64)
set(TARGET_CPU "x64")
else ()
set(TARGET_CPU ${CMAKE_SYSTEM_PROCESSOR})
endif (ARCH_X86)
endif (TARGET_CPU STREQUAL "")
if (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
message(FATAL_ERROR "Unknown value '${TARGET_CPU}' for variable TARGET_CPU, options are: ${TARGET_CPU_LIST}")
endif (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
if (UNIX)
if (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "-m32")
endif (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "${LIBWEBRTC_REQUIRED_CXX_FLAGS} -std=gnu++0x")
list(APPEND LIBWEBRTC_DEFINITIONS WEBRTC_POSIX _GLIBCXX_USE_CXX11_ABI=0)
elseif (WIN32)
set(LIBWEBRTC_REQUIRED_C_FLAGS_DEBUG "/MTd")
set(LIBWEBRTC_REQUIRED_C_FLAGS_RELEASE "/MT")
set(LIBWEBRTC_REQUIRED_CXX_FLAGS_DEBUG "/MTd")
set(LIBWEBRTC_REQUIRED_CXX_FLAGS_RELEASE "/MT")
list(APPEND LIBWEBRTC_DEFINITIONS WEBRTC_WIN NOMINMAX _CRT_SECURE_NO_WARNINGS)
endif(UNIX)
set(LIBWEBRTC_LIBRARIES webrtc)
add_subdirectory(Targets)
export(PACKAGE LibWebRTC)