armv4l bootstrap problem in libstdc++-v3

[Benjamin Kosnik]

> /usr/include/unistd.h: In member function `std::__basic_file<_CharT>* 
>    std::__basic_file<_CharT>::sys_open(int, std::_Ios_Openmode) [with
> _CharT = 
>    char]':
> c++io.cc:262:   instantiated from here
> /usr/include/unistd.h:437: too few arguments to function `int dup(int,
> void, 
>    ...)'
> c++io.cc:98: at this point in file
> make[4]: *** [c++io.lo] Error 1

this is my fault. I'll fix it.