From 2e84957ddc081264db2d49aac47504695cb4be6a Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Thu, 13 May 2021 21:59:25 +0100
Subject: [PATCH] router instance must be mutable

---
 src/src/readconf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/src/readconf.c b/src/src/readconf.c
index 0ad206172..a18cb8bbb 100644
--- a/src/src/readconf.c
+++ b/src/src/readconf.c
@@ -3775,7 +3775,12 @@ while ((buffer = get_config_line()))
     /* Set up a new driver instance data block on the chain, with
     its default values installed. */
 
+  {
+  int old_pool = store_pool;
+  if (Ustrncmp(class, "router", 7) == 0) store_pool = POOL_PERM;
     d = store_get(instance_size, FALSE);
+  store_pool = old_pool;
+  }
     memcpy(d, instance_default, instance_size);
     *p = d;
     p = &d->next;
-- 
2.39.2