mixing sun solaris's rpc with mit's rpc

[fariba]

has anybody used sun's rpc  and mit's rpc in a kerborised application? 
the mit's rpc (gssrpc)  is to be used for encrypted  communication and 
the sun's rpc is used for non-encrypted communication. we have such a 
program but we want to upgrade to 5-1.4.1 version of kerberos,  but the 
header files are quite different now and we run into compilation issues. 
whereas we did not have a problem with prior kerberos releases. we use 
solaris 2.6 , 2.8 and 2.9. also anybody ever used sun's rpc and kerberos 
to  communicate with  mit's kerberos server? i appreciate the help very 
much. thank you.