Basic build questions

[Bates, Rod]

mrs@wrs.com answered me: 

>> 1) Is it true that, during the second build of the compiler, I must
>> be able to get xgcc to link *.o files which it built with *.o and
>> *.a file(s) that are provided by the native OS?  In particular,
>> probably crt*.o and libc.a?  Trying to do this is where the
>> incompatibilities show up.
>
>No.  You can cross compile from anything, and provide your own libc.a
>built with the GNU tools, if you want.  If you want to use the native
>libc.a, then you will have to find a way to convert them, or otherwise
>make things compatible.

So, let me refine my question.  Using the normal native compiler
build process, (i.e. not the cross compiler process), is it true
that I must be able to get xgcc to link *.o files which it built with *.o
and
*.a file(s) that are provided by the native OS? 

I think your answer to this is "yes", and that I will have to build
a cross compiler on another machine, use it to cross compile
libc etc., put the results on the target machine, and then build
from there.  Is this right?

Rodney Bates