Mark,
It did not work. The "/" is just inserted at the end of the procedure code.
I reported this to the Oracle people, I will post any news I get from them.

One thing I noticed, is that THE FIRST TIME I execute the procedure creation code after opening the connection, the value returned by sqlexec is 1. But the procedure is not created OK, and is still "invalid". From then on, sqlexec always returns -1. Seems that oracle wants "something more" to really compile the procedure, but it is not the "/".

Thanks!