Clone the tdlib repo. Go to the td/example/ios directory.
Let's build it for iOS and macOS. First of all you need to compile OpenSSL, run build-openssl.sh script, wait for the execution to complete. Then run build.sh to compile TDLib. See detailed instructions in example/ios/README.md.
By default library compiles for 7 targets: macOS iOS, iOS-simulator, watchOS, watchOS-simulator, tvOS, tvOS-simulator, this takes a long time. If you don't need all platforms, edit line 8 in the build.sh file, for example:
platforms="macOS iOS"
After compilation is finish, go to the current repo (tdlib-swift) to the directory td-xcframework, run the script copy_files_from_tdlib.sh for copying .a libraries to our xcode project which creates the xcframework
$ tdlib-swift/td-xcframework/copy_files_from_tdlib.shOr you can manually copy all *.a files from example/ios/build/install-iOS/lib/ to td-xcframework/iOS/lib/,
and libcrypto.a and libssl.a files from third_party/openssl/iOS/lib/ to td-xcframework/td-ios/lib/. Repeat the same steps for the rest of the platforms.
After the files have been copied, run the script build.sh, wait a little more and the xcframework is ready! It located in td-xcframework/build.