diff -Naur graphviz-2.26.3.orig/configure graphviz-2.26.3/configure
--- graphviz-2.26.3.orig/configure	2011-06-27 12:55:19.000000000 -0400
+++ graphviz-2.26.3/configure	2011-06-27 13:02:57.000000000 -0400
@@ -22656,40 +22656,7 @@
 
 # Standard set of common directories for X headers.
 # Check X11 before X11Rn because it is often a symlink to the current release.
-ac_x_header_dirs='
-/usr/X11/include
-/usr/X11R6/include
-/usr/X11R5/include
-/usr/X11R4/include
-
-/usr/include/X11
-/usr/include/X11R6
-/usr/include/X11R5
-/usr/include/X11R4
-
-/usr/local/X11/include
-/usr/local/X11R6/include
-/usr/local/X11R5/include
-/usr/local/X11R4/include
-
-/usr/local/include/X11
-/usr/local/include/X11R6
-/usr/local/include/X11R5
-/usr/local/include/X11R4
-
-/usr/X386/include
-/usr/x386/include
-/usr/XFree86/include/X11
-
-/usr/include
-/usr/local/include
-/usr/unsupported/include
-/usr/athena/include
-/usr/local/x11r5/include
-/usr/lpp/Xamples/include
-
-/usr/openwin/include
-/usr/openwin/share/include'
+ac_x_header_dirs=''
 
 if test "$ac_x_includes" = no; then
   # Guess where to find include files, by looking for Xlib.h.