From 22f12dc93c1b8c4e0c5aa8a945669c3fe2dfce3c Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Thu, 20 Jul 2017 14:49:37 +0300
Subject: [PATCH] cmake: fix build with CMake 3.9.0

---
 cmake/OpenCVPCHSupport.cmake | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/cmake/OpenCVPCHSupport.cmake b/cmake/OpenCVPCHSupport.cmake
index 8a6c5c4..12e804d 100644
--- a/cmake/OpenCVPCHSupport.cmake
+++ b/cmake/OpenCVPCHSupport.cmake
@@ -323,10 +323,7 @@ MACRO(ADD_NATIVE_PRECOMPILED_HEADER _targetName _input)
 
         get_target_property(_sources ${_targetName} SOURCES)
         foreach(src ${_sources})
-          if(NOT "${src}" MATCHES "\\.mm$"
-               AND NOT "${src}" MATCHES "\\.h$" AND NOT "${src}" MATCHES "\\.hpp$" # header files
-               AND NOT "${src}" MATCHES "^\$" # CMake generator expressions
-          )
+          if("${src}" MATCHES "\\.c(pp|xx)?$")
             get_source_file_property(oldProps "${src}" COMPILE_FLAGS)
             get_source_file_property(oldProps2 "${src}" COMPILE_DEFINITIONS)
             if(NOT oldProps AND NOT oldProps2)
-- 
2.7.4