Linker Flags against Kerberos5 Libraries

Dan Mahoney dmahoney at isc.org
Tue Nov 6 01:03:43 UTC 2012


Hey all,

I've been working with someone doing development against the stock 
kerberos libraries installed in FreeBSD 8.3, and they've noticed that the 
symbols present in some of the kerberos libraries don't stand on their 
own.

For example:

configure:13089: cc -o conftest -O2 -pipe -fno-strict-aliasing 
-I/usr/local/include  -L/usr/local/lib  conftest.c -lkrb5 -lasn1 -lcom_err
-lcrypto -lcrypt  -lpam  >&5
/usr/lib/libasn1.so: undefined reference to `rk_strpoolcollect'
/usr/lib/libkrb5.so: undefined reference to `bswap16'
/usr/lib/libkrb5.so: undefined reference to `hx509_certs_init'
/usr/lib/libkrb5.so: undefined reference to `hx509_cert_get_serialnumber'
/usr/lib/libkrb5.so: undefined reference to `strlwr'
/usr/lib/libasn1.so: undefined reference to `rk_hex_encode'
/usr/lib/libkrb5.so: undefined reference to 
`hx509_cert_find_subjectAltName_otherName'
/usr/lib/libkrb5.so: undefined reference to `hx509_certs_find'
/usr/lib/libkrb5.so: undefined reference to `net_write'
/usr/lib/libkrb5.so: undefined reference to `socket_sockaddr_size'
/usr/lib/libkrb5.so: undefined reference to `hx509_verify_attach_anchors'
[...]

>From this, it would seem to be the case that any program linked against 
any of the Kerberos libraries will fail unless linked against ALL of them, 
and the libraries don't seem to depend on each other.

My questions:

1) Is there a sane way of detecting the required linker flags?

2) Is there a better mailing list I should be asking these on?

-Dan


More information about the freebsd-questions mailing list