Description: Don't lookup previous point if there isn't any
Author: Marc Deslauriers <marc.deslauriers@canonical.com>
Forwarded: no

Index: t1lib-5.1.2/lib/type1/type1.c
===================================================================
--- t1lib-5.1.2.orig/lib/type1/type1.c	2011-12-13 14:24:14.280965637 -0600
+++ t1lib-5.1.2/lib/type1/type1.c	2011-12-13 14:25:25.893320747 -0600
@@ -1700,6 +1700,7 @@
   long pindex = 0;
   
   /* compute hinting for previous segment! */
+  if (ppoints == NULL) Error0i("RLineTo: No previous point!\n");
   FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx, dy);
 
   /* Allocate a new path point and pre-setup data */
@@ -1728,6 +1729,7 @@
   long pindex = 0;
   
   /* compute hinting for previous point! */
+  if (ppoints == NULL) Error0i("RRCurveTo: No previous point!\n");
   FindStems( currx, curry, currx-ppoints[numppoints-2].x, curry-ppoints[numppoints-2].y, dx1, dy1);
 
   /* Allocate three new path points and pre-setup data */
@@ -1903,6 +1905,7 @@
     FindStems( currx, curry, 0, 0, dx, dy);
   }
   else {
+    if (ppoints == NULL) Error0i("RMoveTo: No previous point!\n");
     FindStems( currx, curry, ppoints[numppoints-2].x, ppoints[numppoints-2].y, dx, dy);
   }
   
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