CMake: Bugfix: do not use std::is_pod in C++11 check

Some gcc versions erroneously warn about std::is_pod being deprecated
even though they are running in C++11 mode.

diff --git a/cmake/checks/check_01_cxx_features.cmake b/cmake/checks/check_01_cxx_features.cmake
index 4a7319c79c2e07033fea7e109bd3fc826a0a9cbc..43cb4526f75eb6941752d0a708f0841772aa11d4 100644 (file)
--- a/cmake/checks/check_01_cxx_features.cmake
+++ b/cmake/checks/check_01_cxx_features.cmake
@@ -292,8 +292,6 @@ macro(_test_cxx14_support)
      (void) m0;
      constexpr auto m1 = std::is_standard_layout<double>::value;
      (void) m1;
-     constexpr auto m2 = std::is_pod<double>::value;
-     (void) m2;
     }
     "
     DEAL_II_HAVE_CXX11_FEATURES)