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import os
def rtc_cmake_config(env):
config = {
"USE_NICE": 0,
"NO_WEBSOCKET": 1,
"NO_EXAMPLES": 1,
"NO_TESTS": 1,
"OPENSSL_USE_STATIC_LIBS": 1,
"OPENSSL_INCLUDE_DIR": env["SSL_INCLUDE"],
"OPENSSL_SSL_LIBRARY": env["SSL_LIBRARY"],
"OPENSSL_CRYPTO_LIBRARY": env["SSL_CRYPTO_LIBRARY"],
"OPENSSL_ROOT_DIR": env["SSL_BUILD"],
"CMAKE_BUILD_TYPE": "%s" % ("RelWithDebInfo" if env["debug_symbols"] else "Release"),
}
if "CC" in env:
config["CMAKE_C_COMPILER"] = env["CC"]
if "CXX" in env:
config["CMAKE_CXX_COMPILER"] = env["CXX"]
if env["platform"] == "android":
api = env["android_api_level"] if int(env["android_api_level"]) > 28 else "28"
abi = {
"arm64": "arm64-v8a",
"arm32": "armeabi-v7a",
"x86_32": "x86",
"x86_64": "x86_64",
}[env["arch"]]
config["CMAKE_SYSTEM_NAME"] = "Android"
config["CMAKE_SYSTEM_VERSION"] = api
config["CMAKE_ANDROID_ARCH_ABI"] = abi
config["ANDROID_ABI"] = abi
config["CMAKE_TOOLCHAIN_FILE"] = "%s/build/cmake/android.toolchain.cmake" % os.environ.get(
"ANDROID_NDK_ROOT", ""
)
config["CMAKE_ANDROID_STL_TYPE"] = "c++_static"
elif env["platform"] == "linux":
march = "-m32" if env["arch"] == "x86_32" else "-m64"
config["CMAKE_C_FLAGS"] = march
config["CMAKE_CXX_FLAGS"] = march
elif env["platform"] == "macos":
if env["arch"] == "universal":
raise ValueError("OSX architecture not supported: %s" % env["arch"])
config["CMAKE_OSX_ARCHITECTURES"] = env["arch"]
if env["macos_deployment_target"] != "default":
config["CMAKE_OSX_DEPLOYMENT_TARGET"] = env["macos_deployment_target"]
elif env["platform"] == "ios":
if env["arch"] == "universal":
raise ValueError("iOS architecture not supported: %s" % env["arch"])
config["CMAKE_SYSTEM_NAME"] = "iOS"
config["CMAKE_OSX_DEPLOYMENT_TARGET"] = "11.0"
config["CMAKE_OSX_ARCHITECTURES"] = env["arch"]
if env["ios_simulator"]:
config["CMAKE_OSX_SYSROOT"] = "iphonesimulator"
elif env["platform"] == "windows":
config["CMAKE_SYSTEM_NAME"] = "Windows"
config["BUILD_WITH_WARNINGS"] = "0" # Disables werror in libsrtp.
return config
def rtc_emitter(target, source, env):
env.Depends(env["RTC_LIBS"], env["SSL_LIBS"])
env.Depends(
env["RTC_LIBS"],
[env.File(__file__), env.Dir(env["RTC_SOURCE"]), env.File(env["RTC_SOURCE"] + "/CMakeLists.txt")],
)
return env["RTC_LIBS"], env.Dir(env["RTC_SOURCE"])
def rtc_action(target, source, env):
rtc_env = env.Clone()
build_dir = env["RTC_BUILD"]
source_dir = env["RTC_SOURCE"]
opts = rtc_cmake_config(rtc_env)
rtc_env.CMakeConfigure(source_dir, build_dir, ["-D%s=%s" % it for it in opts.items()])
rtc_env.CMakeBuild(build_dir, "datachannel-static")
return None
def exists(env):
return "CMakeConfigure" in env and "CMakeBuild" in env
def generate(env):
env["RTC_SOURCE"] = env["DEPS_SOURCE"] + "/libdatachannel"
env["RTC_BUILD"] = env["DEPS_BUILD"] + "/libdatachannel"
env["RTC_INCLUDE"] = env["RTC_SOURCE"] + "/include"
env["RTC_LIBS"] = [
env.File(env["RTC_BUILD"] + "/" + lib)
for lib in [
"libdatachannel-static.a",
"deps/libjuice/libjuice-static.a",
"deps/libsrtp/libsrtp2.a",
"deps/usrsctp/usrsctplib/libusrsctp.a",
]
]
env.Append(BUILDERS={"BuildLibDataChannel": env.Builder(action=rtc_action, emitter=rtc_emitter)})
env.Append(LIBPATH=[env["RTC_BUILD"]])
env.Append(CPPPATH=[env["RTC_INCLUDE"]])
env.Prepend(LIBS=env["RTC_LIBS"])
if env["platform"] == "windows":
env.AppendUnique(LIBS=["iphlpapi", "bcrypt"])
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