llvm dev - Aug 2006 - [LLVMdev] updating the "Getting Started" page with more info about the gcc4 frontend

Erick Tryzelaar wrote:
>> It's a "least surprise" issue. If gcc3 produces bytecode
directly, why
>> did the gcc4 driver create such a large departure from original,
>> expected functionality? It's a rhetorical question, BTW.
>>   
> 
> I actually know this one :) I believe the powers that be decided that
> having a gcc-compatible interface was less surprising to folks than
> keeping compatible with the gcc3 driver. Thats why the gcc4 driver now
> supports the whole -O[1-4] options, among other things.
That's why I would either make sure that the difference is highlighted
in the FAQ and that the difference is highlighted in the "Getting
Started" pages. Otherwise, it'll remain a mailing list FAQ.

On Thu, 24 Aug 2006, Scott Michel wrote:
> That's why I would either make sure that the difference is highlighted
> in the FAQ and that the difference is highlighted in the "Getting
> Started" pages. Otherwise, it'll remain a mailing list FAQ.
Patches welcome.  Please send a patch, or even just some suggested text, 
and we'll be happy to include it.  Remember that the people who usually 
end up writing the FAQ's already know all the answers, so it's hard for
us
to see things from fresh perspectives sometimes :)

-Chris

-- 
http://nondot.org/sabre/
http://llvm.org/

Chris Lattner wrote:
> Patches welcome.  Please send a patch, or even just some suggested 
> text, and we'll be happy to include it.  Remember that the people who 
> usually end up writing the FAQ's already know all the answers, so
it's
> hard for us to see things from fresh perspectives sometimes :)
>
> -Chris
>
Actually, my request for more info in the "Getting Started" had some 
hidden questions, as I don't know the answer to them :) So to be a 
little more clear, here are the two I had:

Does the gcc4 no longer need the "fixheaders" script that the gcc3.4 
frontends uses?

Is it possible to install both the gcc4 and the gcc3.4 frontends at the 
same time, or are they mutually exclusive? If so, how? If not, would it 
require a full rebuild, and renaming the executables something like 
llvm-gcc3?

Thanks again,

-e