+# Use -D 'kversion 2.6.32-131.6.1.el6.x86_64' to build package
+# for specified kernel version.
+%{?kversion:%define kernel_version %kversion}
+
+# Use -D 'kflavors default debug kdump' to build packages for
+# specified kernel variants.
+%{!?kflavors:%define kflavors default}