Cross compiling ROS from source for QNX throws linker error for C 11

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I cross compiled all the third party dependent software for ROS for QNX 7.0 ArmV7. While cross compiling ROS, the linker throws an error linking against the standard c++11 features in the rospack package.

I also tried editing the CMakeLists.txt of rospack to support C++11 but that didnt help

/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: warning: : The 'tmpnam' function is dangerous. Use 'mkstemp' instead.warning: The 'tmpnam' function is dangerous. Use 'mkstemp' instead. /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.sowarning: : The 'tempnam' function is dangerous. Use 'mkstemp' instead.warning: The 'tempnam' function is dangerous. Use 'mkstemp' instead. /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.sostd::basic_ios<char, std::char_traits<char> >::init(std::basic_streambuf<char, std::char_traits<char> >*): undefined reference to' std::basic_ios<char, std::char_traits<char=""> >::init(std::basic_streambuf<char, std::char_traits<char=""> >)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_replace_aux(unsigned int, unsigned int, unsigned int, char)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference tostd::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator<char> >::_M_replace_aux(unsigned int, unsigned int, unsigned int, char)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to std::__cxx11::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >::_M_create(unsigned int&, unsigned int)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.sostd::__cxx11::basic_string<wchar_t, std::char_traits<wchar_t="">, std::allocator<wchar_t> >::_M_create(unsigned int&, unsigned int): undefined reference to ' std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_append(char const*, unsigned int)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference tostd::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator<char> >::_M_append(char const, unsigned int)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to std::_Rb_tree_decrement(std::_Rb_tree_node_base*)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference tostd::ios_base::~ios_base()/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so' : undefined reference to std::_Rb_tree_decrement(std::_Rb_tree_node_base*)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to std::ios_base::~ios_base()std::_Rb_tree_increment(std::_Rb_tree_node_base*)' ' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference to/opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.sostd::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator<char> >::compare(std::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator<char> > const&) const: undefined reference to ' std::_Rb_tree_increment(std::_Rb_tree_node_base*)' /opt/qnx/install/arm_catkin_ros/devel_isolated/rospack/lib/librospack.so: undefined reference tostd::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator<char> >::compare(std::__cxx11::basic_string<char, std::char_traits<char="">, std::allocator ...