Re: changing the default compilers for autoconf

[Benoit SIGOURE]

On Sep 12, 2007, at 8:33 AM, Sanjay Gianchandani wrote:

> Hey all,
> the changes that Ralf suggested pretty much worked for me, except  
> for two
> things...
> one i still dont know how to set autoconf or libtools[i guess for  
> this i
> will need to mail the libtools mailing list?] to use the sun  
> performance
> libraries, and second as i said previously, i wantd to make this  
> more as a S
> un compiler based version of autoconf, which could be used by any and
> everyone who is interested in making...if the change needs to be  
> made in the
> configure.ac of each of the applications then it pretty much  
> defeats the
> purpose...

Hi,
I'm afraid you will have to tell the list how to actually usethe Sun  
performance libraries: is it a matter of adding a compilation flag  
for all translation units?  Does this flag needs to be used at link  
time too?  Is it simply a library that has to be used at link time?   
Etc.

Second, I suggested that you modify the system-wide config.site so  
that it sets CC and CXX to the Sun compiler, this has several  
advantages:
  - Can easily be installed on various machines (it's just a matter  
of modifying a file)
  - Requires no changes to autoconf (why would want to deal with a  
sort of fork of autoconf that will annoy you when new versions are  
released and that will force you to re-bootstrap the projects you  
download off the Internet -- remember that autoconf is needed only to  
create the initial configure and stuff, when you download a pre- 
packaged tarball off the Internet it's already bootstrapped and you'd  
need to invoke autoconf again so that configure is regenerated to  
suit your preferences!)
  - Is system-wide (applies to all users in there back) and requires  
no changes to any existing configure.ac.
So why not go for this idea?  I should be feasible, at least as far  
as I know.

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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