error

*** uWSGI compiling embedded plugins ***
    [thread 3][arm-linux-gnueabihf-gcc -pthread] plugins/python/python_plugin.o
    [thread 1][arm-linux-gnueabihf-gcc -pthread] plugins/python/pyutils.o
    [thread 0][arm-linux-gnueabihf-gcc -pthread] plugins/python/pyloader.o
    In file included from /usr/include/python2.7/unicodeobject.h:120:0,
                     from /usr/include/python2.7/Python.h:85,
                     from plugins/python/uwsgi_python.h:2,
                     from plugins/python/python_plugin.c:1:
    /home/ubuntu/software/stage/usr/include/wchar.h: In function 'wctob':
    /home/ubuntu/software/stage/usr/include/wchar.h:395:47: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
     { return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
                                                   ^
    In file included from /usr/include/python2.7/unicodeobject.h:120:0,
                     from /usr/include/python2.7/Python.h:85,
                     from plugins/python/uwsgi_python.h:2,
                     from plugins/python/pyutils.c:1:
    /home/ubuntu/software/stage/usr/include/wchar.h: In function 'wctob':
    /home/ubuntu/software/stage/usr/include/wchar.h:395:47: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
     { return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
                                                   ^
    In file included from /usr/include/python2.7/unicodeobject.h:120:0,
                     from /usr/include/python2.7/Python.h:85,
                     from plugins/python/uwsgi_python.h:2,
                     from plugins/python/pyloader.c:1:
    /home/ubuntu/software/stage/usr/include/wchar.h: In function 'wctob':
    /home/ubuntu/software/stage/usr/include/wchar.h:395:47: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
     { return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
                                                   ^
    cc1: all warnings being treated as errors
    cc1: all warnings being treated as errors
    cc1: all warnings being treated as errors