🚀 go-pugleaf

I am trying to get gnuchess to compile under solaris, but am getting some
unusual errors.

The first error occurs when I run 'make all'... here's what I get.
book.c: In function `Vparse':
book.c:315: `__ctype' undeclared (first use this function)
book.c:315: (Each undeclared identifier is reported only once
book.c:315: for each function it appears in.)
make: *** [bookN.o] Error 1

However when look at the actual source, there is no __ctype:
grep "__ctype" book.c 

Yields nothing.  This is obviously unusual?  
Has anyone got any suggestions on how to get the thing to compile..

-- what parts of the makefile do I need to edit?  

Any and all help would be greatly appriciated.. please E-MAIL.. thanks/

-- 
--
Chris Shudes
shudes@rex.cs.tulane.edu
Tulane University, New Orleans