Simplify fmt::runtime
diff --git a/include/fmt/core.h b/include/fmt/core.h
index e36bbe3..762155c 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -3080,10 +3080,8 @@
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
// Workaround broken conversion on older gcc.
-template <typename... Args> using format_string = string_view;
-template <typename S> auto runtime(const S& s) -> basic_string_view<char_t<S>> {
- return s;
-}
+template <typename...> using format_string = string_view;
+inline auto runtime(string_view s) -> basic_string_view<char> { return s; }
#else
template <typename... Args>
using format_string = basic_format_string<char, type_identity_t<Args>...>;
@@ -3097,9 +3095,7 @@
fmt::print(fmt::runtime("{:d}"), "I am not a number");
\endrst
*/
-template <typename S> auto runtime(const S& s) -> basic_runtime<char_t<S>> {
- return {{s}};
-}
+inline auto runtime(string_view s) -> basic_runtime<char> { return {{s}}; }
#endif
FMT_API auto vformat(string_view fmt, format_args args) -> std::string;
