RE: question about macro `minibuffer-with-setup-hook', byte-compilation

[Drew Adams]

> > I byte-compile foo.el in an Emacs version that does not have macro
> > `minibuffer-with-setup-hook',
> 
> So you get a .elc file that doesn't work.
> Don't do that.  It's true of *all* macros, because they are run during
> compilation, so if they're not present during compilation 
> you're screwed.

Could you please explain what I am seeing, e.g., that the macro is defined at
runtime and the byte-code invokes it at runtime, but an invalid function error
is raised.  Thx.