- notified an error when the manpage can not be printed on screen.

src/os-utils.lisp

@@ -90,6 +90,12 @@
                       :output output
                       :error  error))
 
+(defun process-exit-code (process)
+  (sb-ext:process-exit-code process))
+
+(defun process-exit-success-p (process)
+  (= (process-exit-code process) 0))
+
 (defun open-with-editor (file)
   (multiple-value-bind (exe args)
       (external-editor)

src/package.lisp

@@ -339,6 +339,9 @@
    :getenv
    :default-temp-dir
    :pwd
+   :run-external-program
+   :process-exit-code
+   :process-exit-success-p
    :open-with-editor
    :exit-program
    :user-cache-dir

src/ui-goodies.lisp

@@ -26,13 +26,15 @@
   (progn
     (croatoan:end-screen)
     (tui:with-notify-errors
-      (os-utils::run-external-program +man-bin+
-                                      (list +program-name+)
-                                      :search t
-                                      :wait   t
-                                      :input  t
-                                      :output t
-                                      :error  t)))
+      (let ((process (os-utils:run-external-program +man-bin+
+                                                    (list +program-name+)
+                                                    :search t
+                                                    :wait   t
+                                                    :input  t
+                                                    :output t
+                                                    :error  t)))
+        (when (not (os-utils:process-exit-success-p process))
+          (error (_ "Unable to load manual, contact your system administrator"))))))
   #-man-bin
   (notify (_ "No manpage binary found on this system") :as-error t))