[Adonthell-devel] Freetype and SWIG configure checks

[Kai Sterker]

I've added proper checks for freetype2 to the configure file. 

I also found out why the debian package is called libfreetype6. Seems that 
since version 6.x, libfreetype is labelled libfreetype 2. Odd numbering 
scheme, but who cares.

Btw., right now I check for libfreetype v8.0.0 or greater. I have 8.0.2 
installed, and usually a higher major number indicates incompatibilities to 
older versions. But we can change that if you are using an older version that 
works as well.

Then I added version checking for SWIG. I haven't put in any warnings yet as 
SWIG is only required when compiling the CVS code, or after changes to some 
header files. 

Actually, we could check if a 'CVS' directory exists and let configure fail 
if SWIG is not found or not recent enough. Otherwise we might display a 
message telling people to update SWIG if they plan to make changes to the 
code.

Hm, I'll do that now :).

Kai