I just upgraded to v8.2 and have an issue with one of my stored proc/functions that worked under 8.1: CREATE OR REPLACE FUNCTION getpid() RETURNS integer AS '/lib/libc.so.6', 'getpid' LANGUAGE 'c' VOLATILE; ERROR: incompatible library "/lib/libc.so.6": missing magic block SQL state: XX000 Hint: Extension libraries are required to use the PG_MODULE_MAGIC macro. I've added the appropriate macro to all my actual C code...but in this case surely I am not expected to recompile libc...am I? Is there an easier way to get the pid of the current process?