AVR Freaks

Guys, I get the following error when I include the <iostream> in a .cpp file.  This error is no doubt a makefile flag problem.  Is there a flag to ignore this error????

DEP ../../examples/getting_started_with_blue/test.cpp
CC ../../examples/getting_started_with_blue/test.cpp
In file included from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h:44:0,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\bits\basic_string.h:5417,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\string:52,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\bits\locale_classes.h:40,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\bits\ios_base.h:41,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ios:42,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ostream:38,
                 from d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\iostream:39,
                 from ../../examples/getting_started_with_blue/test.cpp:8:
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h: In constructor '__gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, std::size_t*, _Base ...)::_Save_errno::_Save_errno()':
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h:63:27: error: 'errno' was not declared in this scope
  _Save_errno() : _M_errno(errno) { errno = 0; }
                           ^
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h: In destructor '__gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, std::size_t*, _Base ...)::_Save_errno::~_Save_errno()':
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h:64:23: error: 'errno' was not declared in this scope
  ~_Save_errno() { if (errno == 0) errno = _M_errno; }
                       ^
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h: In function '_Ret __gnu_cxx::__stoa(_TRet (*)(const _CharT*, _CharT**, _Base ...), const char*, const _CharT*, std::size_t*, _Base ...)':
d:\arm dependencies\gcc-arm\arm-none-eabi\include\c++\6.3.1\ext\string_conversions.h:72:16: error: 'errno' was not declared in this scope
       else if (errno == ERANGE
                ^
make: *** [../../scripts/Makefile.rules:100: build/sama5d4-xplained/ddram/examples/getting_started_with_blue/test.o] Error 1