[fpc-pascal] Use of FPMake to build FPC from source

[Marco van de Voort]

In our previous episode, Michael Van Canneyt said:
> > It's been a while since FPMake established, and in svn / source version,
> > there are fpmake.pp along with Makefile in almost every package (rtl, fcl,
> > etc.). Is this system ready to be used like I only need to compile one top
> > level fpmake then it will compile the others to build/install FPC?
> 
> It's actively being tested and debugged at the moment.

Afaik only the parts in packages/ ? 

E.g. the toplevel RTL fpmake hasn't been touched since 2008, and there is no
toplevel or compiler/ fpmake.

> There were some issues with cross-compilation, and older (pre windows-XP) systems.
> These are being fixed. As soon as the core team is satisfied with this, the 
> distribution system will progressively be switched to fpmake.

For me the important part is getting rid of make and coreutils, since the
windows versions are no longer maintained.