canadian vs build==host configury

[Adam Megacz <megacz@cs.berkeley.edu>]

Mohan Embar <gnustuff@thisiscool.com> writes:
> I don't see how this:
>
>> >   +         GCJ="$built_gcc_dir/gcj -B$built_gcc_dir/"
>
> ...could possibly be right. Adam, are you building on Linux or Mactel?

Linux.

> What the above line is assuming is that the intermediate compiler is
> suitable for building libgcj. This is only true when build=host, which

That is the case; at the moment I am doing (build==host)!=target.
The previous configury was broken for that case.

> That means building the cross compiler, installing it, then adjusting your
> system path accordingly before doing the crossed-native build.

Perhaps, but this should not be necessary when build==host.

If I understand your email correctly, you need to do a "make install"
before building libgcj when creating a Canadian cross-compiler and
then let libgcj's build process find the installed compiler.  However,
this had not previously been required for build==host cross-compilers.
Did that change?

I think Canadian cross-builds need their own case arm in that block of
configure.ac (the "we cannot execute the compiler we just built" case,
which is not identical to the "we are making a cross-compiler" case).

  - a

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