From bd45b3ae4fd2ff54a60077e7190c887ccbe5e5c7 Mon Sep 17 00:00:00 2001
From: Jeff Breidenbach <breidenbach@gmail.com>
Date: Sun, 29 Jan 2017 16:59:52 +0100
Subject: [PATCH] fix #537: Error in pixClone: pixs not defined

---
 ccmain/tesseractclass.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ccmain/tesseractclass.h b/ccmain/tesseractclass.h
index f29f8b6abf..62d7b8d2e6 100644
--- a/ccmain/tesseractclass.h
+++ b/ccmain/tesseractclass.h
@@ -203,7 +203,8 @@ class Tesseract : public Wordrec {
     pix_original_ = original_pix;
     // Clone to sublangs as well.
     for (int i = 0; i < sub_langs_.size(); ++i)
-      sub_langs_[i]->set_pix_original(pixClone(original_pix));
+      sub_langs_[i]->set_pix_original(
+          original_pix ? pixClone(original_pix) : nullptr);
   }
   // Returns a pointer to a Pix representing the best available (original) image
   // of the page. Can be of any bit depth, but never color-mapped, as that has