dup2.c: In function 'ms_windows_dup2':
dup2.c:53:11: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
       if ((HANDLE) _get_osfhandle (fd) == INVALID_HANDLE_VALUE)
           ^

error.c:112:1: warning: function declaration isn't a prototype [-Wstrict-prototypes]
 int strerror_r ();
 ^

error.c: In function 'is_open':
error.c:135:10: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
   return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
          ^

error.c: In function 'error':
error.c:320:3: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
   error_tail (status, errnum, message, args);
   ^

error.c: In function 'error_at_line':
error.c:390:3: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
   error_tail (status, errnum, message, args);
   ^

fcntl.c: In function 'dupfd':
fcntl.c:55:23: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
   HANDLE old_handle = (HANDLE) _get_osfhandle (oldfd);
                       ^

fcntl.c: In function 'fcntl':
fcntl.c:289:25: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
         HANDLE handle = (HANDLE) _get_osfhandle (fd);
                         ^

isatty.c: In function 'rpl_isatty':
isatty.c:68:14: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
   HANDLE h = (HANDLE) _get_osfhandle (fd);
              ^

lseek.c: In function 'rpl_lseek':
lseek.c:40:14: warning: cast from function call of type 'intptr_t' to non-matching type 'void *' [-Wbad-function-cast]
   HANDLE h = (HANDLE) _get_osfhandle (fd);
              ^

nl_langinfo.c: In function 'ctype_codeset':
nl_langinfo.c:37:10: warning: unused variable 'buflen' [-Wunused-variable]
   size_t buflen = 0;
          ^

nl_langinfo.c: In function 'nl_langinfo':
nl_langinfo.c:168:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "ISO-8859-1";
       ^

nl_langinfo.c:181:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "%a %b %e %H:%M:%S %Y";
       ^

nl_langinfo.c:184:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "%m/%d/%y";
       ^

nl_langinfo.c:187:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "%H:%M:%S";
       ^

nl_langinfo.c:189:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "%I:%M:%S %p";
       ^

nl_langinfo.c:192:9: warning: return discards 'const' qualifier from pointer target type [enabled by default]
         return "AM";
         ^

nl_langinfo.c:197:9: warning: return discards 'const' qualifier from pointer target type [enabled by default]
         return "PM";
         ^

nl_langinfo.c:277:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "";
       ^

nl_langinfo.c:279:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "\0\0\0\0\0\0\0\0\0\0";
       ^

nl_langinfo.c:314:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "^[yY]";
       ^

nl_langinfo.c:316:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "^[nN]";
       ^

nl_langinfo.c:318:7: warning: return discards 'const' qualifier from pointer target type [enabled by default]
       return "";