mir_2_15: Fix build on GCC15 (#474785)

      ))

    ];

    env.NIX_CFLAGS_COMPILE = lib.optionalString (lib.strings.versionOlder version "2.20.0") (toString [

      # std::wstring_convert<std::codecvt_utf8[...]> in src/server/shell/decoration/renderer.cpp is deprecated in C++17, removed in C++26

      # Upstream just disabled the warning for now: https://github.com/canonical/mir/commit/e8d1a2255a48991f20889e5844b0d69f5f75d01f

      # File got ripped apart and shuffled around between 2.15 and 2.20, so can't just add as patch

      "-Wno-error=deprecated-declarations"

    ]);

    doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;

    disabledTests = lib.optionals (lib.strings.versionAtLeast version "2.25.0") [