[gtkada] Pragma Unreferenced

[Arnaud Charlet]

> GtkAda-2.0.0 contains pragma Unreferenced which is not recognized by
> GNAT-3.14p on Windows. I have looked at both GNAT User's Guide and GNAT
> Reference Manual for this pragma without prevail. What option should be
> used when compiling GtkAda-2.0.0 source code? Thanks.

The options used to compile GtkAda 2.0 are those specified in the Makefile.

In particular, this pragma (only available in recent versions of GNAT) will
only generate a warning message, so warnings should not be translated
to errors (-gnatwe).

Arno