From fe8983f3444ca0f287d54d673ddda3aa9fb1a17c Mon Sep 17 00:00:00 2001
From: Oliver Reiche <oliver.reiche@gmail.com>
Date: Sat, 14 Jan 2023 14:26:01 +0100
Subject: Minor fixes for compiling with clang-14

---
 src/other_tools/root_maps/fpath_git_map.hpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/other_tools/root_maps/fpath_git_map.hpp')

diff --git a/src/other_tools/root_maps/fpath_git_map.hpp b/src/other_tools/root_maps/fpath_git_map.hpp
index fdcc962c..7f772eff 100644
--- a/src/other_tools/root_maps/fpath_git_map.hpp
+++ b/src/other_tools/root_maps/fpath_git_map.hpp
@@ -21,6 +21,11 @@
 /// \brief Maps the path to a repo on the file system to its Git tree WS root.
 using FilePathGitMap = AsyncMapConsumer<std::filesystem::path, nlohmann::json>;
 
+#if (defined(__GLIBCXX__) and _GLIBCXX_RELEASE < 12) or \
+    (defined(_LIBCPP_VERSION) and _LIBCPP_VERSION < 16000)
+// std::hash<std::filesystem::path> is missing for
+// - GNU's libstdc++ < 12
+// - LLVM's libcxx < 16 (see https://reviews.llvm.org/D125394)
 namespace std {
 template <>
 struct hash<std::filesystem::path> {
@@ -30,6 +35,7 @@ struct hash<std::filesystem::path> {
     }
 };
 }  // namespace std
+#endif
 
 [[nodiscard]] auto CreateFilePathGitMap(
     std::optional<std::string> const& current_subcmd,
@@ -37,4 +43,4 @@ struct hash<std::filesystem::path> {
     gsl::not_null<ImportToGitMap*> const& import_to_git_map,
     std::size_t jobs) -> FilePathGitMap;
 
-#endif  // INCLUDED_SRC_OTHER_TOOLS_ROOT_MAPS_FPATH_GIT_MAP_HPP
\ No newline at end of file
+#endif  // INCLUDED_SRC_OTHER_TOOLS_ROOT_MAPS_FPATH_GIT_MAP_HPP
-- 
cgit v1.2.3