We don't have build settings support right now so this is kind of expected. But I think the cross compilation support may help in compiling for Android. This has an example on how to create and use a cross compilation toolchain: https://github.com/apple/swift-package-manager/blob/master/Utilities/build_ubuntu_cross_compilation_toolchain

Comment by Amr Aboelela (JIRA)

In UserToolchain.swift:

self.extraSwiftCFlags = [

        "-target", destination.target,

        "-sdk", destination.sdk.asString

    \] + destination.extraSwiftCFlags

And in build_ubuntu_cross_compilation_toolchain:

swift build --destination /tmp/cross-toolchain/ubuntu-xenial-destination.json

...

cat > "$cross_tc_basename/ubuntu-xenial-destination.json" <<EOF

{

...

"target": "linux-unknown-x86_64",

...

}

So the answer of my question seems to create a destination file, e.g. android.json, fill it with target armv7-none-linux-androideabi then run swift build --destination android.json