(setq ada-xref-other-function 'ada-gnat-xref-other)
(setq ada-xref-parent-function 'ada-gnat-xref-parents)
(setq ada-xref-all-function 'ada-gnat-xref-all)
(setq ada-xref-other-function 'ada-gnat-xref-other)
(setq ada-xref-parent-function 'ada-gnat-xref-parents)
(setq ada-xref-all-function 'ada-gnat-xref-all)