Portability of GIR files

[Phil Clayton <phil clayton lineone net>]

I've been assuming that GIR files are portable and using them to 
generate (equally) portable binding code.  I've found that they're not 
in one detail: the filename in the shared-library attribute looks to 
assume GNU ld.  For example:

  <namespace name="GObject"
             version="2.0"
             shared-library="libgobject-2.0.so.0"

On Mac OS X, I think we would have libgobject-2.0.0.dylib instead.

Can it be assumed (sometimes|mostly|always) that

  1. On GNU/Linux this name is the 'SO name' with form:
       <name>.so.<so-version>

  2. On Mac OS X this name has the form:
       <name>.<so-version>.dylib
?

If that is always the case, could GIR files be made portable, e.g.
  <namespace ...>
    <shared-library name="gobject-2.0" so-version="0"/>
    ...
  </namespace>

Also, is there any other way in which GIR files are not fully portable?

Thanks,
Phil