#361 compiling the ghostscript driver with recent version fails ("missing contrib.mak")

[Havlicek stole the ball]

Hey,

as the title says: with the current ghostscript release (10.0.4) the scripts aborts with:

Cannot find file "contrib.mak" in ghostscript distribution.

Using ghostscript 9.25, it goes through smoothly. In both ghostscript versions, said file is in the same location.

On a side note: at the beginning, I also get:

Cannot find source file for ghostscript fonts.
- Trying to use installed ghostscript fonts.
Things will break if they are not found at runtime

[Leon Bottou]

Please use the git repository instead of the released files.

$ git clone https://git.code.sf.net/p/djvu/gsdjvu-git djvulibre-gsdjvu

Does it work better.
Note that I recommend gs-9.55 rather than the new gs-10 versions, for now.