Creating a RFC3156 compliant encrypted message with Gnu PG

[mconahan at iotest.org]

Does anyone know how to create a RFC 3156 compliant PGP encrypted 
message with Gnu PG?  I am building an app that is making use of the Gnu 
PG functionality, and I am having some trouble getting other PGP apps 
(said to be 3156 compliant) to accept it.  I have read both RFC 3156 and 
2015, and I seem to be missing something, since it isn't working. 

Does anyone know of tutorial site, or has a script that creates a RFC 
3156 compliant message?  Any help would be appreciated.