To increaase compatibility to Linux it would be great if it is possible to create a keyword which it makes possible to include C-headers and then do automatically the binding stuff.

That means that fpc woul be able to parse C-code (headers).

If that is possible.

In our previous episode, Rainer Stratmann said:

Not, or at least not enough to be robust. A lot of C headers is based on (macro,define) substitution, IOW it needs context of use to obtain the full meaning.

This is also why the header conversion tool only works to a certain degree. If headers are reasonably clean it can work ok. If you have hundreds of macros and special constructs it needs manual work. (for which I can't imagine a solution, even in theory).

May it would be a solution if the C-compiler which compiles the library generates a 'generic library interface file' or something similar with all necessary information. Because the compiler has all the information.

From this 'generic library interface file' it will be easier to convert a pascal header interface file. Or the C-compiler generates it directly for pascal. ---> 'pascal library interface file' or similar...

That I can imagine could be a solution, but the C-compiler programmers have to implement this function.

The full meaning-context can be read in the original C-header file then.

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AFAIK gcc has an option to compile header files, but I don't know the internal format