Add ggtags config for code navigation to C language integration

config.org

@@ -282,6 +282,24 @@ needs to be set up to install them if they aren't already.
      (use-package cmake-mode)
    #+end_src
 
+*** Code Navigation
+    Using GNU Global for now, so hook =ggtags-mode= into =c-mode=:
+
+    #+begin_src emacs-lisp
+      (use-package ggtags
+        :config
+        (add-hook 'c-mode-common-hook
+                  (lambda () (ggtags-mode 1))))
+    #+end_src
+
+    And, of course, add some keybindings
+
+    #+begin_src emacs-lisp
+      (define-key ggtags-mode-map (kbd "C-c g r") 'ggtags-find-reference)
+      (define-key ggtags-mode-map (kbd "C-c g d") 'ggtags-find-definition)
+      (define-key ggtags-mode-map (kbd "C-c g u") 'ggtags-update-tags)
+    #+end_src
+
 ** Haskell
    My workflow with Haskell is very REPL-based, so I always want
    =interactive-haskell-mode= on.