// This is a dummy program that just needs to compile and link to tell us if
// the C++17 std::filesystem API is available. Use CMake's configure_file
// command to replace the FILESYSTEM_HEADER and FILESYSTEM_NAMESPACE tokens
// for each combination of headers and namespaces which we want to pass to the
// CMake try_compile command.

#include <@FILESYSTEM_HEADER@>

int main()
{
    try
    {
        throw @FILESYSTEM_NAMESPACE@::filesystem_error("instantiate one to make sure it links",
            std::make_error_code(std::errc::function_not_supported));
    }
    catch (const @FILESYSTEM_NAMESPACE@::filesystem_error& error)
    {
        return -1;
    }

    return !@FILESYSTEM_NAMESPACE@::temp_directory_path().is_absolute();
}