# __alt_kernel is list of features, empty string if none set
# _alt kernel is defined as: %{nil}%{?alt_kernel:-%{?alt_kernel}} (defined in rpm.macros)
# __alt_kernel is list of features, empty string if none set
# _alt kernel is defined as: %{nil}%{?alt_kernel:-%{?alt_kernel}} (defined in rpm.macros)