No longer K&R C

[rdebath]

The initial import could be compiled using a (non ANSI) K&R C compiler. That no longer works.

It would be nice if your clean-up didn't break that.

[brhamon]

It's tricky to find a K&R C compiler these days, but it is possible to make GCC enforce ISO9899:1990 ("ANSI C"). I've made this change on my fork.

I agree it's important to retain the sources original charm, but it's also nice to be able to build it (without compiler warnings) on systems in widespread use.