This make it easier to manage separate compilation units (static functions and
global variables, local type definitions, etc.)
The generated header file `functions.h' caused a circular dependency problem;
it wasn't updated automatically when changes were made to the sources (e.g.
new function definition). The sources can't be in the dependency list of
`functions.h' in the Makefile, because `functions.h' is in the dependency list
of each source file. GNU make is able to ignore the circular dependency but not
BSD make.
At any rate, keeping the prototype list up-to-date is easy, because the
compiler will complain if a function is used in a compilation unit but defined
in an other one.
It also makes static analysis easier out of the box.
Before it only appeared in syslog. Make the error more obvious to
the admin, so that it appears on the page as well, and helps with
debugging.
Closes#32.
Yes, I am still alive, have just been busy.
