[ 50%] Building CXX object CMakeFiles/supertuxkart.dir/src/graphics/sp/sp_shader_manager.cpp.o
In file included from /Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/sp/sp_shader_manager.cpp:22:
In file included from /Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/sp/sp_base.hpp:21:
In file included from /Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/gl_headers.hpp:34:
/System/Library/Frameworks/OpenGL.framework/Headers/gl3.h:15:2: warning: gl.h and gl3.h are both included. Compiler will not invoke errors if using removed OpenGL
      functionality. [-W#warnings]
#warning gl.h and gl3.h are both included.  Compiler will not invoke errors if using removed OpenGL functionality.
 ^
In file included from /Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/sp/sp_shader_manager.cpp:18:
In file included from /Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/sp/sp_shader_manager.hpp:25:
/Library/Developer/CommandLineTools/usr/include/c++/v1/unordered_map:614:14: error: object of type 'std::__1::pair<std::__1::basic_string<char>, const std::type_info
      &>' cannot be assigned because its copy assignment operator is implicitly deleted
        __nc = _VSTD::forward<_ValueTp>(__v); return *this;
             ^
/Library/Developer/CommandLineTools/usr/include/c++/v1/__hash_table:1654:47: note: in instantiation of function template specialization
      'std::__1::__hash_value_type<std::__1::basic_string<char>, const std::type_info &>::operator=<const std::__1::pair<const std::__1::basic_string<char>, const
      std::type_info &> &, void>' requested here
                __cache->__upcast()->__value_ = *__first;
                                              ^
/Library/Developer/CommandLineTools/usr/include/c++/v1/unordered_map:1385:14: note: in instantiation of function template specialization
      'std::__1::__hash_table<std::__1::__hash_value_type<std::__1::basic_string<char>, const std::type_info &>,
      std::__1::__unordered_map_hasher<std::__1::basic_string<char>, std::__1::__hash_value_type<std::__1::basic_string<char>, const std::type_info &>,
      std::__1::hash<std::__1::basic_string<char> >, true>, std::__1::__unordered_map_equal<std::__1::basic_string<char>,
      std::__1::__hash_value_type<std::__1::basic_string<char>, const std::type_info &>, std::__1::equal_to<std::__1::basic_string<char> >, true>,
      std::__1::allocator<std::__1::__hash_value_type<std::__1::basic_string<char>, const std::type_info &> > >::__assign_unique<const std::__1::pair<const
      std::__1::basic_string<char>, const std::type_info &> *>' requested here
    __table_.__assign_unique(__il.begin(), __il.end());
             ^
/Users/tobiasmarkus/workspace/supertuxkart/stk-code/src/graphics/sp/sp_shader_manager.cpp:40:22: note: in instantiation of member function
      'std::__1::unordered_map<std::__1::basic_string<char>, const std::type_info &, std::__1::hash<std::__1::basic_string<char> >,
      std::__1::equal_to<std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<const std::__1::basic_string<char>, const std::type_info &> > >::operator='
      requested here
    m_official_types =
                     ^
/Library/Developer/CommandLineTools/usr/include/c++/v1/utility:322:5: note: copy assignment operator is implicitly deleted because 'pair<std::__1::basic_string<char>,
      const std::type_info &>' has a user-declared move constructor
    pair(pair&&) = default;
    ^
1 warning and 1 error generated.