Platform independent way to find clang resource path

src/compile_commands.cpp

@@ -84,7 +84,6 @@ std::vector<std::string> CompileCommands::get_arguments(const boost::filesystem:
     }
   }
 
-#if defined(__APPLE__)
   static auto resource_path = []() -> std::string {
     boost::system::error_code ec;
     for(boost::filesystem::directory_iterator it(boost::filesystem::path(LIBCLANG_LIBRARY_DIR) / "clang", ec), end; it != end; ++it) {
@@ -97,42 +96,6 @@ std::vector<std::string> CompileCommands::get_arguments(const boost::filesystem:
     arguments.emplace_back("-resource-dir");
     arguments.emplace_back(resource_path);
   }
-#elif defined(_WIN32)
-  auto clang_version_string = clangmm::to_string(clang_getClangVersion());
-  const static std::regex clang_version_regex(R"(^[A-Za-z ]+([0-9.]+).*$)", std::regex::optimize);
-  std::smatch sm;
-  if(std::regex_match(clang_version_string, sm, clang_version_regex)) {
-    auto clang_version = sm[1].str();
-    auto env_msystem_prefix = std::getenv("MSYSTEM_PREFIX");
-    if(env_msystem_prefix)
-      arguments.emplace_back("-I" + (boost::filesystem::path(env_msystem_prefix) / "lib/clang" / clang_version / "include").string());
-  }
-#else
-  static auto resource_path = []() -> std::string {
-    if(!filesystem::find_executable("clang++").empty()) {
-      std::stringstream stdin_stream, stdout_stream;
-      auto exit_status = Terminal::get().process(stdin_stream, stdout_stream, "clang++ -print-resource-dir");
-      if(exit_status != 0)
-        return {};
-      auto path = stdout_stream.str();
-      if(!path.empty())
-        path.pop_back();
-      return path;
-    }
-    else {
-      boost::system::error_code ec;
-      for(boost::filesystem::directory_iterator it(boost::filesystem::path(LIBCLANG_LIBRARY_DIR) / "clang", ec), end; it != end; ++it) {
-        if(boost::filesystem::is_directory(it->path() / "include", ec))
-          return it->path().string();
-      }
-    }
-    return {};
-  }();
-  if(!resource_path.empty()) {
-    arguments.emplace_back("-resource-dir");
-    arguments.emplace_back(resource_path);
-  }
-#endif
 
   // Do not add -fretain-comments-from-system-headers if pch is used, since the pch was most likely made without this flag
   if(std::none_of(arguments.begin(), arguments.end(), [](const std::string &argument) { return argument == "-include-pch"; }))