Building GNU Chess 5.07

[hgm]

I loaded a GNU Chess 5.07 source tar ball, but I have difficulty building it on my Ubuntu 10.04. First I got two compiler error messages:

Apparently GNU Chess defines getline as a pointer to the input function, but the current stdio.h already defines it a function, so there is a conflict there. So I just renamed the pointe 'mygetline'.

Then there is a prototype for an 'extern' function input_thread in common.h, while it occurs only in a single file, where it is defined as 'static'. OK, so I removed the 'static'.

But then it gets tougher. After installing the flex package I get to the linking stage, and I get some dozen of undefined references, mostly to pgn_* symbols, but also to flex-related stuff such as yylex.

Does anyone know how to build GNU Chess 5.07 on a Linux system?

[Henk]

yylex is automatically generated c code. So I don't think you can or should change that.

[hgm]

Well, never mind. I found a binary package.