From d280e4990cd44a694621405b0a68c80707c25e89 Mon Sep 17 00:00:00 2001
From: Jade Lovelace <lix@jade.fyi>
Date: Tue, 6 Aug 2024 20:48:48 -0700
Subject: [PATCH] oops: fix warning about catching polymorphic exception

This was introduced in I0fc80718eb7e02d84cc4b5d5deec4c0f41116134 and
unnoticed since it only appears in gcc builds.

Change-Id: I1de80ce2a8fab63efdca7ca0de2a302ceb118267
---
 src/libstore/filetransfer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstore/filetransfer.cc b/src/libstore/filetransfer.cc
index 566dc65d4..9cb805444 100644
--- a/src/libstore/filetransfer.cc
+++ b/src/libstore/filetransfer.cc
@@ -479,7 +479,7 @@ struct curlFileTransfer : public FileTransfer
     {
         try {
             stopWorkerThread();
-        } catch (nix::Error e) {
+        } catch (nix::Error & e) {
             // This can only fail if a socket to our own process cannot be
             // written to, so it is always a bug in the program if it fails.
             //