From c37a5be4f810af3c1e12a1fe64da53cab090e2a9 Mon Sep 17 00:00:00 2001
From: Ahmed Yarub Hani <ahmed.hani@veus.com.br>
Date: Sun, 20 Aug 2017 11:18:26 -0300
Subject: [PATCH] USING_STD_NAMESPACE is now needed for all of the tesseract
 library, not just for training.

---
 modules/text/src/precomp.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/text/src/precomp.hpp b/modules/text/src/precomp.hpp
index 94f05d8cc..7ccda150f 100644
--- a/modules/text/src/precomp.hpp
+++ b/modules/text/src/precomp.hpp
@@ -48,6 +48,9 @@
 #include "text_config.hpp"
 
 #ifdef HAVE_TESSERACT
+#if !defined(USE_STD_NAMESPACE)
+#define USE_STD_NAMESPACE
+#endif
 #include <tesseract/baseapi.h>
 #include <tesseract/resultiterator.h>
 #endif