Could PackageCompiler install a compiler when run on Linux?

When running PackageCompiler under Windows, "A suitable compiler will be automatically installed the first time it is needed". However, that's not the case on Linux or MacOS. So my suggestion is to make PackageCompiler do the automatic installation of a compiler if that's necessary when running on Linux or MacOS.

For my current project, which includes automated creation of a system image, that would make things simpler.

The issue names no files, tests, or entry points. Start by tracing how PackageCompiler detects and installs a suitable compiler on Windows, then compare the Linux and macOS paths. Done means compiler installation is handled automatically on those platforms when required, with coverage for the relevant platform behavior.

Written by the indexing model from the issue text.