mention that parallel make doesn't work.

FAQ

@@ -134,3 +134,11 @@ is rejecting the TSIG.  Why?
 
 A: This may be a clock skew problem.  Check that the the clocks on
 the client and server are properly synchronized (e.g., using ntp).
+
+
+Q: I'm trying to compile BIND 9, and "make" is failing due to files not
+being found.  Why?
+
+A: Using a parallel and distributed make to build bind 9 is not supported,
+and doesn't work.  If you are using one of these, use normal make or gmake
+instead.