From dc252274865f005a5be6340f1673ec738985b0ae Mon Sep 17 00:00:00 2001
From: Ole Schmidt <ole.schmidt@cern.ch>
Date: Mon, 5 Feb 2024 15:14:01 +0100
Subject: [PATCH] Avoid ambiguity in format_to

---
 DataFormats/Headers/include/Headers/DataHeaderHelpers.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DataFormats/Headers/include/Headers/DataHeaderHelpers.h b/DataFormats/Headers/include/Headers/DataHeaderHelpers.h
index 41d59090e0274..0fa179c6e83aa 100644
--- a/DataFormats/Headers/include/Headers/DataHeaderHelpers.h
+++ b/DataFormats/Headers/include/Headers/DataHeaderHelpers.h
@@ -40,7 +40,7 @@ struct fmt::formatter<T, std::enable_if_t<o2::header::is_descriptor<T>::value, c
   template <typename FormatContext>
   auto format(const T& p, FormatContext& ctx)
   {
-    return format_to(ctx.out(), "{}", p.template as<std::string>());
+    return fmt::format_to(ctx.out(), "{}", p.template as<std::string>());
   }
 };
 
@@ -79,7 +79,7 @@ struct fmt::formatter<o2::header::DataHeader> {
                fmt::format("  firstTForbit : {}\n", h.firstTForbit) +
                fmt::format("  tfCounter    : {}\n", h.tfCounter) +
                fmt::format("  runNumber    : {}\n", h.runNumber);
-    return format_to(ctx.out(), "{}", res);
+    return fmt::format_to(ctx.out(), "{}", res);
   }
 };