From c41d388e8d55e80c6aec11a06bc980e9745000cb Mon Sep 17 00:00:00 2001
From: Anton Alkin <anton.alkin@cern.ch>
Date: Fri, 19 Jun 2026 11:38:11 +0200
Subject: [PATCH] DPL: adapt to FairMQ new API

Rebuild() of a message will call free() on the supplied buffer after
copying it, if a custom free function was not given as an argument.
Since oldestPossingTimeslice is not a heap object, calling free() on it
is not allowed, which seems to be enforced by some compilers.
---
 Framework/Core/src/CommonDataProcessors.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Framework/Core/src/CommonDataProcessors.cxx b/Framework/Core/src/CommonDataProcessors.cxx
index 67c6314de1c34..74ce73a21c635 100644
--- a/Framework/Core/src/CommonDataProcessors.cxx
+++ b/Framework/Core/src/CommonDataProcessors.cxx
@@ -167,7 +167,7 @@ void retryMetricCallback(uv_async_t* async)
     return;
   }
   fair::mq::MessagePtr payload(device->NewMessage());
-  payload->Rebuild(&oldestPossingTimeslice, sizeof(int64_t), nullptr, nullptr);
+  payload->Rebuild(&oldestPossingTimeslice, sizeof(int64_t), [](void*, void*) -> void {}, nullptr);
   auto consumed = oldestPossingTimeslice;
 
   size_t start = uv_hrtime();