Sudden problems with IMAP

I'm trying to make restful authentication work with ruby pam
so that I 
can authenticate against my unix box. (I made a post earlier
today about 
this but I have made some progress since).

I downloaded ruby-pam from rubyforge and compiled the
extension which 
resulted in a file called pam.so.

Ruby-pam comes with a couple of test files which help you to
try the 
extension. When I run them they work correctly and without
errors.

Under "#/lib" I created a file called
pam_pam.rb which is 
based on the test code from ruby-pam (that works by itself
without a 
problem). I also copied pam.so to this same directory.

In the SessionController I "include PamPam" and
make a call to the 
function that does the authentication.

Even though i'm using almost the exact same code as in the
tests (which 
works) I'm getting an error about an undefined function
("pam_end").

How come I get this error under rails but not while running
the test 
script by itself ? Am I not setting up the library correctly
?

You can find the code (from the lib and the controller) in
pastie:

 http://pastie.caboo.se/1
8661

I suspect my problem is in a misplacement of libraries or
the incorrect 
include'ing of files since the test script of ruby-pam works
just fine.

Any help is greatly appreciated.
any help is appreciated.

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