physfs: fix build with cmake 4

        (./. + "/dont-set-cmake-skip-rpath-${version}.patch")

      ];

      # https://github.com/icculus/physfs/commit/f7d24ce8486d9229207cca1ff98858fe60ffe583

      # but the patch wouldn't apply to physfs_2, so let's do a fuzzy sed.

      postPatch = ''

        sed '/^cmake_minimum_required/Is/VERSION [0-9]\.[0-9]/VERSION 3.5/' \

          -i CMakeLists.txt

      '';

      nativeBuildInputs = [

        cmake

        doxygen