Swift SDKs missing curl dependency for statically linking FoundationNetworking

[xtremekforever]

Consider the following example:

import Foundation
import FoundationNetworking

struct TestError: Error {
    let reason: String
}

extension URLSession {
    func data(for request: URLRequest) async throws -> (Data, URLResponse) {
        try await withCheckedThrowingContinuation { continuation in
            let task = self.dataTask(with: request) { data, response, error in
                if let error = error {
                    continuation.resume(throwing: error)
                } else {
                    continuation.resume(returning: (data ?? .init(), response!))
                }
            }
            task.resume()
        }
    }
}

let url = URL(string: "https://httpbin.org/anything")!
let body = Data("test-\(UUID())".utf8)
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = body
let (data, urlResponse) = try await URLSession.shared.data(for: request)
guard let httpResponse = urlResponse as? HTTPURLResponse, httpResponse.statusCode == 200 else {
    throw TestError(reason: "Invalid response")
}
guard let json = String(data: data, encoding: .utf8) else {
    throw TestError(reason: "Invalid response")
}
print(json)
print("URLSession test passed")

When I compile the project with a Swift SDK generated (not from a Docker container) and use --static-swift-stdlib, it cannot find -lcurl:

$ swift build --swift-sdk 6.0.3-RELEASE_ubuntu_jammy_aarch64 --static-swift
-stdlib
Building for debugging...
error: link command failed with exit code 1 (use -v to see invocation)
ld.lld: error: unable to find library -lcurl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
[5/6] Linking foundation-networking-example

It would be good to add the libcurl4-openssl-dev dependency into the sysroot that is generated for the Swift SDK to be able to compile projects that use FoundationNetworking.

[xtremekforever]

Update: it looks like Swift SDKs generated --with-docker do contain this library. So it's only supporting downloading these dependencies when creating Swift SDKs for Debian/Ubuntu without docker that needs to be fixed up.