Something like this:
configuration "lib" {
targetType "dynamicLibrary"
sourceDir "source/lib/"
}
configuration "app" {
targetType "executable"
sourceFiles "source/app.d"
linkWith "lib"
}
I found subConfiguration in the docs but that seems to be related
to external dependencies.
app.d merely provides a CLI to the library as well as an option
to run as a server. I don't want to have the overhead of an
entire git repo and such for something that is a single file and
also closely related to the library.