Olá! Essa dica é para quem precisa compilar o Cyrus 2.4.8 no Debian e mesmo não habilitando o Kerberos continua recebendo os erros abaixo, ao executar o make:

/lib/libcyrus.a(auth_krb5.o): In function `mycanonifyid':
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:121: undefined reference to `krb5_init_context'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:124: undefined reference to `krb5_parse_name'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:131: undefined reference to `krb5_get_default_realm'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:139: undefined reference to `krb5_build_principal'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:149: undefined reference to `krb5_realm_compare'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:155: undefined reference to `krb5_free_principal'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:159: undefined reference to `krb5_unparse_name'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:173: undefined reference to `krb5_free_principal'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:174: undefined reference to `krb5_free_context'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:161: undefined reference to `krb5_free_principal'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:162: undefined reference to `krb5_free_context'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:142: undefined reference to `krb5_free_principal'
/usr/src/cyrus-imapd-2.4.8/lib/auth_krb5.c:143: undefined reference to `krb5_free_context'

Para corrigir esse problema, edite o arquivo auth.c , localizado dentro da pasta lib dos fontes do Cyrus e remova as seguintes linhas:


Feito isso, basta executar o make novamente!