From ff0898e4a75e8f3888f5dbdda279232538401f5d Mon Sep 17 00:00:00 2001
From: John Kingsley <john@johnkingsley.ca>
Date: Mon, 20 Mar 2017 19:35:30 -0400
Subject: [PATCH] Fixed segv on Raspberry Pi

TESS_UNDEF was defined to 2^31-1 when it should have been 2^16-1
on the raspberry pi.  This caused some if statements such as
   if (v->n != TESS_UNDEF)
to not work as expected leading to a segv.
---
 apothecary/formulas/tess2/tess2.patch | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/apothecary/formulas/tess2/tess2.patch b/apothecary/formulas/tess2/tess2.patch
index eb5e07be6..232b98798 100644
--- a/apothecary/formulas/tess2/tess2.patch
+++ b/apothecary/formulas/tess2/tess2.patch
@@ -13,7 +13,7 @@ index c27541e..eafb0aa 100755
  // See OpenGL Red Book for description of the winding rules
  // http://www.glprogramming.com/red/chapter11.html
  enum TessWindingRule
-@@ -115,7 +119,11 @@ enum TessElementType
+@@ -115,11 +119,15 @@
  };
  
  typedef float TESSreal;
@@ -26,6 +26,11 @@ index c27541e..eafb0aa 100755
  typedef struct TESStesselator TESStesselator;
  typedef struct TESSalloc TESSalloc;
  
+-#define TESS_UNDEF (~(TESSindex)0)
++#define TESS_UNDEF ((TESSindex)~0)
+
+ #define TESS_NOTUSED(v) do { (void)(1 ? (void)0 : ( (void)(v) ) ); } while(0)
+
 diff --git a/Source/tess.c b/Source/tess.c
 index 67c038f..93061bb 100755
 --- a/Source/tess.c