File opencv-gcc6-disable-pch.patch of Package opencv-qt5

From a0fdc91a14f07de25d858037940fcd3ba859b4e2 Mon Sep 17 00:00:00 2001
From: Maksim Shabunin <maksim.shabunin@itseez.com>
Date: Fri, 13 May 2016 13:28:09 +0300
Subject: [PATCH] Disabled PCH support for gcc >= 6.0.0

Command line generation routine uses "-isystem" to include headers outside of "<opencv>/modules" folder, but GCC 6 does not work when passed "-isystem /usr/include" option.
---
 cmake/OpenCVPCHSupport.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake/OpenCVPCHSupport.cmake b/cmake/OpenCVPCHSupport.cmake
index 243fb4c..a2df014 100644
--- a/cmake/OpenCVPCHSupport.cmake
+++ b/cmake/OpenCVPCHSupport.cmake
@@ -19,7 +19,7 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
         ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
         OUTPUT_VARIABLE gcc_compiler_version)
     #MESSAGE("GCC Version: ${gcc_compiler_version}")
-    IF(gcc_compiler_version VERSION_GREATER "4.2.-1")
+    IF(gcc_compiler_version VERSION_GREATER "4.2.-1" AND gcc_compiler_version VERSION_LESS "6.0.0")
         SET(PCHSupport_FOUND TRUE)
     ENDIF()
 
-- 
2.8.2