diff -u graphviz-2.16/debian/changelog graphviz-2.16/debian/changelog
--- graphviz-2.16/debian/changelog
+++ graphviz-2.16/debian/changelog
@@ -1,3 +1,9 @@
+graphviz (2.16-3ubuntu3) hardy; urgency=low
+
+  * Fix for dotty hang caused by misplaced fflush() in dot.
+
+ -- Erik de Castro Lopo <erikd+ubuntu@mega-nerd.com>  Thu, 21 Feb 2008 09:29:06 +1100
+
 graphviz (2.16-3ubuntu2) hardy; urgency=low
 
   * Build depend on liblualib50-dev instead of liblua50-dev.
diff -u graphviz-2.16/debian/patches/series graphviz-2.16/debian/patches/series
--- graphviz-2.16/debian/patches/series
+++ graphviz-2.16/debian/patches/series
@@ -6,0 +7 @@
+3_fflush_bugfix
only in patch2:
unchanged:
--- graphviz-2.16.orig/debian/patches/3_fflush_bugfix
+++ graphviz-2.16/debian/patches/3_fflush_bugfix
@@ -0,0 +1,29 @@
+--- graphviz-2.16/lib/gvc/gvrender.c.orig	2008-02-17 10:39:15.000000000 -0500
++++ graphviz-2.16/lib/gvc/gvrender.c	2008-02-17 10:40:09.000000000 -0500
+@@ -306,6 +306,7 @@
+ 	    cg->end_graph();
+     }
+ #endif
++    gvdevice_format(job);
+ }
+ 
+ void gvrender_begin_page(GVJ_t * job)
+@@ -345,7 +346,6 @@
+ 	    cg->end_page();
+     }
+ #endif
+-    gvdevice_format(job);
+ }
+ 
+ void gvrender_begin_layer(GVJ_t * job)
+--- graphviz-2.16/lib/gvc/gvdevice.c.orig	2008-02-17 10:34:40.000000000 -0500
++++ graphviz-2.16/lib/gvc/gvdevice.c	2008-02-17 10:34:52.000000000 -0500
+@@ -207,7 +207,7 @@
+     if (job->output_file
+       && ! job->external_context
+       && job->output_lang != TK
+-      && ! job->flags & GVDEVICE_COMPRESSED_FORMAT)
++      && ! (job->flags & GVDEVICE_COMPRESSED_FORMAT))
+ 	fflush(job->output_file);
+ }
+