Compiler TRN-4 sur FreeBSD

Bonjour,

je tente de compiler Trn4 sur FreeBSD 5.1-RELEASE #0: depuis le port;
pourtant lorsque je tente une compile, j'ai :

...

/usr/lib/libkrb5.so: undefined reference to `decode_METHOD_DATA'
/usr/lib/libkrb5.so: undefined reference to `encode_EncKrbCredPart'
/usr/lib/libkrb5.so: undefined reference to `copy_HostAddresses'
/usr/lib/libkrb5.so: undefined reference to `free_KRB_CRED'
/usr/lib/libkrb5.so: undefined reference to `decode_EncKrbPrivPart'
/usr/lib/libkrb5.so: undefined reference to `free_AS_REQ'
/usr/lib/libkrb5.so: undefined reference to `length_EncAPRepPart'
/usr/lib/libkrb5.so: undefined reference to `decode_AS_REP'
/usr/lib/libkrb5.so: undefined reference to `copy_AuthorizationData'
/usr/lib/libkrb5.so: undefined reference to `free_AuthorizationData'
/usr/lib/libkrb5.so: undefined reference to `copy_Authenticator'
/usr/lib/libkrb5.so: undefined reference to `getarg'

une idée ? L'un d'entre-vous a-t-il déjà compiler, avec succés, un Trn4
sur FreeBSD ?

Cordialement
Frédéric