Set set(CMAKE_CXX_STANDARD_REQUIRED YES)

f9e8bd50 · Davis King · e8fc2dc0 · f9e8bd50
Commit f9e8bd50 authored Dec 13, 2016 by Davis King
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use_cpp_11.cmake dlib/cmake_utils/use_cpp_11.cmake +1 -0

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--- a/dlib/cmake_utils/use_cpp_11.cmake
+++ b/dlib/cmake_utils/use_cpp_11.cmake
@@ -78,6 +78,7 @@ else()
      # newer.
      if (NOT CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 11)
         set(CMAKE_CXX_STANDARD 11)
+         set(CMAKE_CXX_STANDARD_REQUIRED YES)
         message(STATUS "C++11 activated.")
      endif()
   endif()