Remove Cpp11 stuff

CMake/OTBCheckCpp11Keywords.cmake

-#
-# Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
-#
-# This file is part of Orfeo Toolbox
-#
-#     https://www.orfeo-toolbox.org/
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# DEPRECATED: Not used in OTB cmake configuration
-# DEPRECATED: should be removed after 6.2 release
-
-include(CheckCXXSourceCompiles)
-
-set(CMAKE_REQUIRED_FLAGS ${CMAKE_CXX_FLAGS})
-
-unset(OTB_HAS_CXX11 CACHE)
-
-CHECK_CXX_SOURCE_COMPILES("
-#ifdef _MSC_VER
-  #if _MSC_VER <= 1700
-    #error Compiler is not C++11 compliant
-  #endif
-#else
-  #if __cplusplus <= 199711L
-    #error Compiler is not C++11 compliant
-  #endif
-#endif
-
-int main(int argc, char *argv[])
-{
-  return 0;
-}
-
-"
-OTB_HAS_CXX11 )
-
-
-CHECK_CXX_SOURCE_COMPILES("
-#include <memory>
-struct Foo
-{
-  Foo()  { }
-  ~Foo() { }
-};
-
-int main(int argc, char *argv[])
-{
-  std::unique_ptr<Foo> p(new Foo);
-  return 0;
-}
-
-"
-OTB_CXX_HAS_UNIQUE_PTR )
-
-CHECK_CXX_SOURCE_COMPILES("
-struct A
-{
-  A()  { }
-  ~A() { }
-  virtual void foo( ) {  }
-};
-
-struct B : A
-{
-  B()  { }
-  ~B() { }
-  void foo( ) override {  }
-};
-
-int main(int argc, char *argv[])
-{
-  A* p = new B;
-  p->foo();
-  return 0;
-}
-
-"
-OTB_CXX_HAS_OVERRIDE_SPECIFIER )
-
-CHECK_CXX_SOURCE_COMPILES("
-#include <cstddef>
-int main(int argc, char *argv[])
-{
-  int *p = nullptr;
-  return 0;
-}
-"
-OTB_CXX_HAS_NULLPTR )
-
-# try_compile(
-#   OTB_HAS_CXX11
-#   ${CMAKE_CURRENT_BINARY_DIR}/CMake
-#   ${CMAKE_SOURCE_DIR}/CMake/otbTestUniquePtr.cpp
-#   )
-

SuperBuild/CMakeLists.txt

@@ -40,9 +40,6 @@ endif()
 
 include(ExternalProject)
 
-# Not needed as OTB Superbuild requires c++14 since version 6.2
-# include(OTBCheckCpp11Keywords)
-
 include(OTBCheckTargetSystemArch)
 
 set(LINUX FALSE)