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diff --git a/CMakeLists.txt b/CMakeLists.txt
index 940a018373..0e84287be9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,11 +48,6 @@ if(POLICY CMP0026)
cmake_policy(SET CMP0026 NEW)
endif()
-if (POLICY CMP0042)
- # silence cmake 3.0+ warnings about MACOSX_RPATH
- cmake_policy(SET CMP0042 OLD)
-endif()
-
# must go before the project command
set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE)
if(DEFINED CMAKE_BUILD_TYPE AND CMAKE_VERSION VERSION_GREATER "2.8")
diff --git a/cmake/OpenCVDetectCXXCompiler.cmake b/cmake/OpenCVDetectCXXCompiler.cmake
index 23d493dd13..090ad4e362 100644
--- a/cmake/OpenCVDetectCXXCompiler.cmake
+++ b/cmake/OpenCVDetectCXXCompiler.cmake
@@ -5,11 +5,11 @@ if(CMAKE_CL_64)
set(MSVC64 1)
endif()
-if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT MSVC)
set(CMAKE_COMPILER_IS_GNUCXX 1)
set(CMAKE_COMPILER_IS_CLANGCXX 1)
endif()
-if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
+if(CMAKE_C_COMPILER_ID MATCHES "Clang" AND NOT MSVC)
set(CMAKE_COMPILER_IS_GNUCC 1)
set(CMAKE_COMPILER_IS_CLANGCC 1)
endif()
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