parse/enum: workaround fmtlib#1824 warnings in clang

parse/enum.hpp

@@ -10,6 +10,7 @@
 
 #include "fwd.hpp"
 
+#include "../platform.hpp"
 #include "../debug/panic.hpp"
 #include "../introspection/name.hpp"
 #include "../log.hpp"
@@ -183,10 +184,20 @@ namespace cruft::parse::enumeration {
             });
 
             if (!success)
+                // clang#XXX
+                // fmtlib#1824
+                //     generates "unused type alias 'char_type'" under clang
+                #if defined(COMPILER_CLANG)
+                #pragma GCC diagnostic push
+                #pragma GCC diagnostic ignored "-Wunused-local-typedef"
+                #endif
                 LOG_WARN (
-                    "duplicate parse setup for {:s} was ignored",
+                    "duplicate parse setup for {} was ignored",
                     cruft::introspection::name::bare<EnumT> ()
                 );
+                #if defined(COMPILER_CLANG)
+                #pragma GCC diagnostic push -Wno-unused-local-typedef
+                #endif
 
             return cookie {};
         }