master 9afe0de266 4/4: Fix osc.el compilation warning

[Lars Ingebrigtsen]

branch: master
commit 9afe0de266e889c883984826e1c6a42c278dbd11
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Fix osc.el compilation warning
    
    * lisp/osc.el (compilation-filter-start): Avoid compilation warning.
---
 lisp/osc.el | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lisp/osc.el b/lisp/osc.el
index 89467bc4cf..ea6abaebd3 100644
--- a/lisp/osc.el
+++ b/lisp/osc.el
@@ -171,6 +171,8 @@ must be in `compilation-filter-hook'."
   :group 'osc
   :version "29.0")
 
+(defvar compilation-filter-start)
+
 ;;;###autoload
 (defun osc-compilation-filter ()
   "Maybe collect OSC control sequences.