I compiled Ron Parker's SuperPatch for MSDOS POV-Ray 3.1e
basically by dumping all the SuperPatch source files on top of
the DOS 3.1e source distribution, then shovelling the
filenames of files unique to the SuperPatch into the 
djgpp makefile. The thing compiled (using djgpp) with amazingly 
few problems. I have only begun testing superpatch stuff, but
everything i have tested works very nicely, except the 
parametric function objects. Often in the tokenizing or 
rendering of parametric function objects, the SuperPatch 
POV crashes with SIGSEGV. And when it doesn't crash, there
is, at best, one black object with no pigment which is probably the
parametric surface.  
After compiling with debugging on, it never gets so far as rendering
anything. It crashes during 'tokenize' and as close as I can determine 
the crashes happen in mem.c on freeing some memory (again, only with 
parametric functions).
I have not tracked this down any better so far because
of lack of time. I worry that there is a bug in the 
parametric object code (i.e., not just in my half-assed 
compilation).
Does anyone know or can guess what the problem is from this
sketchy information?

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