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From 66e50ee69fa9ee2469d349100e70d8b296c4b4dc Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 11 Sep 2018 00:21:18 -0700
Subject: [PATCH] Dont use isystem

clang really does not like it

Upstream-Status: Pending

Signed-off-by: Khem Raj <raj.khem@gmail.com>

---
 cmake/OpenCVPCHSupport.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmake/OpenCVPCHSupport.cmake b/cmake/OpenCVPCHSupport.cmake
index 08cd06def4..46c9c02da3 100644
--- a/cmake/OpenCVPCHSupport.cmake
+++ b/cmake/OpenCVPCHSupport.cmake
@@ -18,6 +18,8 @@ IF(CV_GCC)
         SET(PCHSupport_FOUND TRUE)
     ENDIF()
 
+    SET(CMAKE_INCLUDE_SYSTEM_FLAG_C "-I")
+    SET(CMAKE_INCLUDE_SYSTEM_FLAG_CXX "-I")
     SET(_PCH_include_prefix "-I")
     SET(_PCH_isystem_prefix "-isystem")
     SET(_PCH_define_prefix "-D")