fix: add missing library externs

diff --git a/mutt/message.h b/mutt/message.h
index d23d6bb3b06c8d59c826b04f9c56b1f2b9f9d958..7964fa049d5be8af4a9368af441e0d09ad47750d 100644 (file)
--- a/mutt/message.h
+++ b/mutt/message.h
@@ -36,8 +36,8 @@
 #define N_(a) a
 #endif
 
-void (*mutt_error)  (const char *format, ...);
-void (*mutt_message)(const char *format, ...);
-void (*mutt_perror) (const char *message);
+extern void (*mutt_error)  (const char *format, ...);
+extern void (*mutt_message)(const char *format, ...);
+extern void (*mutt_perror) (const char *message);
 
 #endif /* _MUTT_MESSAGE_H */