build: symbol ‘bfd_auth_type’ is used, but is not defined as a token and has no rules

Hello, I was trying to build the latest commit and encountered this error: nest/config.Y:615.19-31: error: symbol ‘bfd_auth_type’ is used, but is not defined as a token and has no rules It looks like commit e6dbde688 introduced a dependency on the type `bfd_auth_type` into `nest/config.Y`. However, if protocol bfd is not enabled (e.g. because of disabling pthreads), `proto/bfd/config.Y` won’t get included in the parser and thus `bfd_auth_type` is undefined. Perhaps this should be fixed? Thanks! Maiyun Zhang (he/him)