From 20d650210be6f5e6d357a075833962b296640089 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franz=20P=C3=B6schel?= <franz.poeschel@gmail.com>
Date: Mon, 5 Aug 2024 11:43:54 +0200
Subject: [PATCH] toml11 4.0 compatibility

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

diff --git a/src/IO/JSON/JSONIOHandlerImpl.cpp b/src/IO/JSON/JSONIOHandlerImpl.cpp
index 8a7b2086cc..f4b17569cb 100644
--- a/src/IO/JSON/JSONIOHandlerImpl.cpp
+++ b/src/IO/JSON/JSONIOHandlerImpl.cpp
@@ -151,7 +151,7 @@ namespace
                 auto asToml = openPMD::json::jsonToToml(shadow);
                 std::cerr << "Warning: parts of the backend configuration for "
                              "JSON/TOML backend remain unused:\n"
-                          << asToml << std::endl;
+                          << json::format_toml(asToml) << std::endl;
                 break;
             }
             }