--- a/src/DLD-FUNCTIONS/__voronoi__.cc	Fri Sep 07 21:35:44 2007 +0000
+++ b/src/DLD-FUNCTIONS/__voronoi__.cc	Fri Sep 07 21:39:56 2007 +0000
@@ -46,11 +46,6 @@
 #ifdef NEED_QHULL_VERSION
 char qh_version[] = "__voronoi__.oct 2007-07-24";
 #endif
-
-FILE *outfile = stdout;
-FILE *errfile = stderr;
-char flags[250];
-const char *options;
 #endif
 
 DEFUN_DLD (__voronoi__, args, ,
@@ -71,6 +66,8 @@
       return retval;
     }
 
+  const char *options;
+
   if (nargin == 2) 
     {
       if (!args (1).is_string ()) 
@@ -101,8 +98,16 @@
 
   boolT ismalloc = false;
 
+  OCTAVE_LOCAL_BUFFER(char, flags, 250);
+
   // hmm  lot's of options for qhull here
   sprintf(flags,"qhull v Fv T0 %s",options);
+
+  // If you want some debugging information replace the NULL
+  // pointer with outfile.
+  FILE *outfile = stdout;
+  FILE *errfile = stderr;
+
   if (!qh_new_qhull (dim, np, pt_array, ismalloc, flags, NULL, errfile)) 
     {