Fixed clang c++20 compile

include/spdlog/logger.h

@@ -19,14 +19,14 @@
 #include <spdlog/details/backtracer.h>
 
 #ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
-#include <spdlog/details/os.h>
+#    include <spdlog/details/os.h>
 #endif
 
 #include <vector>
 #include <iterator>
 
 #ifndef SPDLOG_NO_EXCEPTIONS
-#define SPDLOG_LOGGER_CATCH()                                                                                                              \
+#    define SPDLOG_LOGGER_CATCH()                                                                                                          \
         catch (const std::exception &ex)                                                                                                   \
         {                                                                                                                                  \
             err_handler_(ex.what());                                                                                                       \
@@ -37,7 +37,7 @@
             throw;                                                                                                                         \
         }
 #else
-#define SPDLOG_LOGGER_CATCH()
+#    define SPDLOG_LOGGER_CATCH()
 #endif
 
 namespace spdlog {
@@ -223,9 +223,9 @@ public:
     }
 
 #ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
-#ifndef _WIN32
-#error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
-#else
+#    ifndef _WIN32
+#        error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
+#    else
 
     template<typename... Args>
     void log(source_loc loc, level::level_enum lvl, wstring_view_t fmt, Args &&...args)
@@ -240,7 +240,7 @@ public:
         {
             // format to wmemory_buffer and convert to utf8
             fmt::wmemory_buffer wbuf;
-            fmt::format_to(std::back_inserter(wbuf), fmt, std::forward<Args>(args)...);
+            fmt::format_to(std::back_inserter(wbuf), fmt::runtime(fmt), std::forward<Args>(args)...);
 
             memory_buf_t buf;
             details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf);
@@ -270,7 +270,7 @@ public:
         }
         SPDLOG_LOGGER_CATCH()
     }
-#endif // _WIN32
+#    endif // _WIN32
 #endif     // SPDLOG_WCHAR_TO_UTF8_SUPPORT
 
     // return true logging is enabled for the given level.
@@ -340,7 +340,7 @@ protected:
         SPDLOG_TRY
         {
             memory_buf_t buf;
-            fmt::format_to(std::back_inserter(buf), fmt, std::forward<Args>(args)...);
+            fmt::format_to(std::back_inserter(buf), fmt::runtime(fmt), std::forward<Args>(args)...);
             details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
             log_it_(log_msg, log_enabled, traceback_enabled);
         }
@@ -365,5 +365,5 @@ void swap(logger &a, logger &b);
 } // namespace spdlog
 
 #ifdef SPDLOG_HEADER_ONLY
-#include "logger-inl.h"
+#    include "logger-inl.h"
 #endif