Made debugger-keybinding work.

init.el

@@ -1,5 +1,5 @@
 ;;; init.el --- tastytea's Emacs init file.
-;; Time-stamp: <2019-05-15T00:38:30+00:00>
+;; Time-stamp: <2019-05-15T00:59:10+00:00>
 
 ;;; Commentary:
 ;; I am using this file with Emacs 26, but most of it will probably work with
@@ -370,9 +370,6 @@ With argument, do this that many times."
     :after irony
     :custom
     (cmake-ide-build-dir "build")
-    ;; (cmake-ide-cmake-args '("-DCMAKE_BUILD_TYPE=Debug"
-    ;;                         "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
-    ;;                         "-GUnix Makefiles"))
     (cmake-ide-cmake-opts "")           ; Use the already configured options.
     :config
     (cmake-ide-setup))
@@ -382,11 +379,14 @@ With argument, do this that many times."
 (use-package realgud
   :after cc-mode
   :config
-  (defun my/load-realgud ()
-    (load-library "realgud"))
+  (defun my/launch-gdb ()
+    "Load realgud and launch gdb."
+    (interactive)
+    (load-library "realgud")
+    (realgud:gdb))
   :bind
   (:map c-mode-base-map
-        ("C-c g" . my/load-realgud)))
+        ("g" . my/launch-gdb)))
 
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