lib/fmt/ToSpan: un-inline VFmtTruncate()

src/lib/fmt/ToSpan.cxx

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// author: Max Kellermann <[email protected]>
+
+#include "ToSpan.hxx"
+
+std::string_view
+VFmtTruncate(std::span<char> buffer,
+	     fmt::string_view format_str, fmt::format_args args) noexcept
+{
+	auto [p, _] = fmt::vformat_to_n(buffer.begin(), buffer.size(),
+					format_str, args);
+	return {buffer.begin(), p};
+}

src/lib/fmt/ToSpan.hxx

@@ -9,14 +9,9 @@
 #include <string_view>
 
 [[nodiscard]] [[gnu::pure]]
-inline std::string_view
+std::string_view
 VFmtTruncate(std::span<char> buffer,
-	     fmt::string_view format_str, fmt::format_args args) noexcept
-{
-	auto [p, _] = fmt::vformat_to_n(buffer.begin(), buffer.size(),
-					format_str, args);
-	return {buffer.begin(), p};
-}
+	     fmt::string_view format_str, fmt::format_args args) noexcept;
 
 template<typename S, typename... Args>
 [[nodiscard]] [[gnu::pure]]

src/lib/fmt/meson.build

@@ -14,6 +14,7 @@ endif
 fmt = static_library(
   'fmt',
   'RuntimeError.cxx',
+  'ToSpan.cxx',
   include_directories: inc,
   dependencies: libfmt,
 )