Fresh install on Mac OS 10.5.4

I downloaded version 8.3.3 and after a successful build from source  
and an install, I tried to create a database cluster. I got the  
following error:

bash-3.2$ initdb -D /usr/local/pgsql/data

dyld: Library not loaded: /usr/local/pgsql/lib/libpq.4.dylib
   Referenced from: /usr/local/bin/initdb
   Reason: image not found
Trace/BPT trap

Any ideas? This is on Mac OS 10.5.4. What I see in /usr/local/pgsql/ 
lib is libpq.5.dylib and not libpq.4.dylib.

Thanks!
Manoj Patwardhan