From d05799e4718d219d0c8613ad3c34592ea4a2f86b Mon Sep 17 00:00:00 2001
From: Nelle Varoquaux <nelle.varoquaux@gmail.com>
Date: Tue, 5 Feb 2019 10:54:14 -0800
Subject: [PATCH] Backport PR #13365: Fix gcc warning

---
 src/_tkagg.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/_tkagg.cpp b/src/_tkagg.cpp
index 1d690f4f4e00..7be9ad2fcbd9 100644
--- a/src/_tkagg.cpp
+++ b/src/_tkagg.cpp
@@ -114,7 +114,7 @@ static int PyAggImagePhoto(ClientData clientdata, Tcl_Interp *interp, int
         try {
             destbuffer = new agg::int8u[deststride * destheight];
         }
-        catch (std::bad_alloc) {
+        catch (const std::bad_alloc &) {
             TCL_APPEND_RESULT(interp, "could not allocate memory", (char *)NULL);
             return TCL_ERROR;
         }