--- cmake/OpenCVDetectCXXCompiler.cmake.orig	2017-10-23 08:41:12.000000000 -0700
+++ cmake/OpenCVDetectCXXCompiler.cmake	2017-12-16 19:22:16.000000000 -0700
@@ -5,11 +5,11 @@
     set(MSVC64 1)
 endif()
 
-if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+if(CMAKE_CXX_COMPILER_ID MATCHES ".*Clang")
   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")
   set(CMAKE_COMPILER_IS_GNUCC 1)
   set(CMAKE_COMPILER_IS_CLANGCC 1)
 endif()