Should executables also generate a library?

[jordwalke]

This came up in our adding of rely tests. For rely tests to work well, you want a library (with -link-all flags set), and then an executable entrypoint that requires that library.

What would be the harm in each executable also generating a library?

Instead of specifying the .re file, to make the binary entrypoint you could specify the library name.

  "buildDirs": {
    "thing": {
      "namespace": "Thing",
      "flags": ["-link-all"],
      "require": [ "bos.top" ],
      "bin": {
        "MyApp.exe": "my-package.thing"
      }
    },

With node, each library is an executable and it might be cool to also have a similar capability by default with pesy.

(Note that for Rely tests, we do need different flags for the library than for the executable, so we'd need some way to specify flags only for the exe or only for the library).