- rpm/macros.kernel-source:
      + Rename the -s option to -t in the %kernel_module_package macro
        for improved cross-distro compatibility.
      + Define %kernel_module_package_release as 1 for feature tests.
      + Define %kernel_module_package_buildreqs for use by KMPs: that
        way, KMPs can either use this macro for compatibility, or
        they can substitute other packages for special cases.