FPC Base Units: FIX for 5.x

[Marco van de Voort]

> Now that lang/fpc no longer installs just a pre-compiled binary, etc., 
> I've broken it down into smaller parts.  Could someone please be 
> assigned/look at these PR's?  They constitute the base libraries for 
> lang/fpc.  I'm not going to add the extra libraries or the ide until 
> these get committed in some form.

I saw you used COMPAT_4 when installing on 5.x.

The following script should fix that.

(at least here it generates working binaries linked to libc that are
rapported as "5.0.2" on my FreeBSD 5.2)

Script: (replaces "link-to-c" startup file by one that fixes RTLD_CLEANUP
registration and adds ELF ident section)

http://www.stack.nl/~marcov/fixfpc