is pdftex required?

[Chris Meyer]

Hi, I downloaded 3.23.25-beta source and tried to build it on 
Darwin/Mac OS X PB.

I had to make a set of patches as usual (I'll submit those later)...

But... even after I made my patches it failed to compile because it 
couldn't find 'pdftex'. Is there a way to disable 'pdftex' for 
platforms that don't have the tool available or is it going to be a 
required tool from now on?

After I commented out the 'Docs' sub-make in the main Makefile, 
everything built fine.

Thanks,
Chris Meyer