.a swift static builds for macOS in Xcode?

On the command-line I can generate a .a static file from a swift file no problem via:

$ swiftc -emit-module -emit-library -static myswiftcode.swift

how do I do this under Xcode? For macOS the only "library" project option is for cocoa or C/C++. iOS has a static library project setup but won't work if I try to use that on macOS.

My best guess was creating an empty project targeting a "command-line" app for macOS, but the compile is expecting _main:

Undefined symbol: _main

anybody know how to set up Xcode target for a .a static build from swift files on macOS?

Thanks!

.a swift static builds for macOS in Xcode?
 
 
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