option('enable_kmods', type: 'boolean', value: true, description: 'build kernel modules')
option('kernel_dir', type: 'string', value: '', description: 'path to the kernel for building kernel modules')
option('per_library_versions', type: 'boolean', value: true, description: 'true: each lib gets its own version number, false: DPDK version used for each lib')
+option('include_subdir_arch', type: 'string', value: '', description: 'subdirectory where to install arch-dependent headers')