(setq ada-make-package-body nil)
(setq ada-syntax-propertize-hook (delq 'gnatprep-syntax-propertize ada-syntax-propertize-hook))
+ (setq ada-syntax-propertize-hook (delq 'ada-gnat-syntax-propertize ada-syntax-propertize-hook))
(setq ada-mode-hook (delq 'ada-gnat-xref-setup ada-mode-hook))
(setq ada-xref-other-function nil)