filehandle vs. filedescriptor in Glib?

[<pcg goof com ( Marc) (A.) (Lehmann )>]

Hmm.. currently, Glib's requirement for filedescriptors and not file
handles leads to pretty unintuitive error messages:

   add_watch Glib::IO $fh, ...

   =>

   GLib-WARNING **: giounix.c:397Error while getting flags for FD: Bad
   file descriptor (9)

Is there a special reason why Glib does work with perl files, or can I go
and change the interface to work with filehandles?

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