Stored Procedues in C - Mailing list pgsql-general

Would anyone happen to have any examples or be able to point me to how to
write a stored procedure in C?  Ive looked at
http://www.postgresql.org/docs/8.1/interactive/trigger-interface.html

But am still having problems with getting a compile to work on a Linux
machine. (linker options etc..)

Thanks,
Bart