Re: config.guess and $CC

[Bruno Haible]

Peter O'Gorman wrote:
> I worry that changing this will break something.

Is there any written documentation of config.*, except in the comments of
config.guess and config.sub? I only see vague terms like "CPU types",
"canonical", and such. No formal definitions in terms of ABI, of backward
compatibility, of instruction set, ...

The comments in config.sub say that the first part of the triplet is CPU_TYPE.
You can hardly justify that on a 64-bit machine, CPU_TYPE is "i386". For me,
it's a new platform x86_64-apple-darwin.

> I would guess that a
> number of configure scripts currently only check for ppc*darwin* and
> i386*darwin* and make decisions based on that.

Yes. And a new platform x86_64*darwin* has appeared. People who have
configure scripts that check only for known platforms obviously have to
make adjustments when new platforms appear. New platforms have been
appearing constantly for the past 15 years.

Bruno