libstdc++-v3 fails to build

[Eric Christopher]

> I get several errors
> 
> creating libsupc++/Makefile
> Can't open /usr/people/jarausch/ZIP/EGCS/gcc-cvs/libstdc++-v3/libsupc++/Makefile.in
> creating config.h
> linking /usr/people/jarausch/ZIP/EGCS/gcc-cvs/libstdc++-v3/config/os/irix/bits/os_defines.h to include/bits/os_defines.h
> configure: error: /usr/people/jarausch/ZIP/EGCS/gcc-cvs/libstdc++-v3/config/os/irix/bits/os_defines.h: File not found
> 
> There isn't any os_defines.h file in my distribution!
> 

I was seeing this one earlier on my x86 linux box.  I did a fresh
checkout and configure. Now I'm seeing:

In file included from
/home/echristo/prog/sourceware/gcc/gcc/libstdc++-v3/libio/libio.h:30,
                 from
/home/echristo/prog/sourceware/gcc/gcc/libstdc++-v3/libio/iolibio.h:0,
                 from
/home/echristo/prog/sourceware/gcc/gcc/libstdc++-v3/libio/libioP.h:36,
                 from
/home/echristo/prog/sourceware/gcc/gcc/libstdc++-v3/libio/filedoalloc.c:47:
/home/echristo/prog/sourceware/gcc/gcc/libstdc++-v3/libio/_G_config.h:8:29:
bits/c++config.h: No such file or directory


-eric