--- /dev/null
+From 1402869715e3efca87942d79c3173a6b21a6925d Mon Sep 17 00:00:00 2001
+From: Rudi Heitbaum <rudi@heitbaum.com>
+Date: Fri, 5 Jul 2024 14:27:45 +0000
+Subject: [PATCH 1/1] lib/fmt: support build with libfmt-11.0.0
+
+Upstream libfmt commit fmtlib/fmt@d707292
+now requires the format function to be const.
+
+Adjust the function prototype so it is const and can compile.
+
+Signed-off-by: Rudi Heitbaum <rudi@heitbaum.com>
+Signed-off-by: Alexander Egorenkov <egorenar-dev@posteo.net>
+---
+ src/lib/ffmpeg/LibFmt.hxx | 2 +-
+ src/lib/fmt/AudioFormatFormatter.hxx | 4 ++--
+ src/lib/fmt/ExceptionFormatter.hxx | 2 +-
+ src/lib/fmt/PathFormatter.hxx | 2 +-
+ 4 files changed, 5 insertions(+), 5 deletions(-)
+
+--- a/src/lib/ffmpeg/LibFmt.hxx
++++ b/src/lib/ffmpeg/LibFmt.hxx
+@@ -29,7 +29,7 @@ template<>
+ struct fmt::formatter<AVSampleFormat> : formatter<string_view>
+ {
+ template<typename FormatContext>
+- auto format(const AVSampleFormat format, FormatContext &ctx) {
++ auto format(const AVSampleFormat format, FormatContext &ctx) const {
+ const char *name = av_get_sample_fmt_name(format);
+ if (name == nullptr)
+ name = "?";
+--- a/src/lib/fmt/AudioFormatFormatter.hxx
++++ b/src/lib/fmt/AudioFormatFormatter.hxx
+@@ -39,7 +39,7 @@ template<>
+ struct fmt::formatter<SampleFormat> : formatter<string_view>
+ {
+ template<typename FormatContext>
+- auto format(const SampleFormat format, FormatContext &ctx) {
++ auto format(const SampleFormat format, FormatContext &ctx) const {
+ return formatter<string_view>::format(sample_format_to_string(format),
+ ctx);
+ }
+@@ -49,7 +49,7 @@ template<>
+ struct fmt::formatter<AudioFormat> : formatter<string_view>
+ {
+ template<typename FormatContext>
+- auto format(const AudioFormat &af, FormatContext &ctx) {
++ auto format(const AudioFormat &af, FormatContext &ctx) const {
+ return formatter<string_view>::format(ToString(af).c_str(),
+ ctx);
+ }
+--- a/src/lib/fmt/ExceptionFormatter.hxx
++++ b/src/lib/fmt/ExceptionFormatter.hxx
+@@ -38,7 +38,7 @@ template<>
+ struct fmt::formatter<std::exception_ptr> : formatter<string_view>
+ {
+ template<typename FormatContext>
+- auto format(std::exception_ptr e, FormatContext &ctx) {
++ auto format(std::exception_ptr e, FormatContext &ctx) const {
+ return formatter<string_view>::format(GetFullMessage(e), ctx);
+ }
+ };
+--- a/src/lib/fmt/PathFormatter.hxx
++++ b/src/lib/fmt/PathFormatter.hxx
+@@ -29,7 +29,7 @@ template<>
+ struct fmt::formatter<Path> : formatter<string_view>
+ {
+ template<typename FormatContext>
+- auto format(Path path, FormatContext &ctx) {
++ auto format(Path path, FormatContext &ctx) const {
+ return formatter<string_view>::format(path.ToUTF8(), ctx);
+ }
+ };