[Barrelfish-users] CC variable

Timothy Roscoe troscoe at inf.ethz.ch
Fri Aug 26 11:07:17 CEST 2011

Hi Georgios,

We made an early decision to bury the binding of the C compiler fairly 
deep down in Hake's architecture abstractions.  If there really is a 
pressing need to specify the C compiler differently for different 
modules in the same build architecture, we would need to add the 
compiler name to the (ever-expanding) Opts record.  This is doable, but 
it's a bit of work.

One alternative is to explicitly compile the C files by writing 
low-level Hake combinators in your Hakefile.  Hake won't compile (or 
calculate dependencies for) any C files which you don't explicitly hand 
it, so you can treat any C file specially if you're prepared to forego 
the convenience of the "build library" or "build application" functions. 
  This might be the easiest way forward for a small module (how big is 

This does require a bit more understanding of how Hake works, but most 
of what you need should be in the Technical Note.

Hope this helps a bit...

  -- Mothy

On 08/26/2011 10:19 AM, Georgios Varisteas wrote:
> Hi Simon,
> Thanks for the quick reply. Setting the compiler in ./hake/ anywhere would be "too" permanent. What I would prefer is to use a custom compiler just for one module. Ideally there would be a CC-equivalent option in the hakefile. Could I try and add such a feature in hake?
> I can always have the compiler to be a wrapper script that invokes the correct compiler according to arguments (default being gcc). But this is a hassle for portability since I wont be able to have a variable for default_compiler to be passed to the wrapper script.
> -Georgios
> ________________________________________
> From: Simon Peter [speter at inf.ethz.ch]
> Sent: Friday, August 26, 2011 10:03
> To: Georgios Varisteas
> Cc: barrelfish-users at lists.inf.ethz.ch
> Subject: Re: [Barrelfish-users] CC variable
> Hi Georgios,
> We don't really do this, but it's probably to set the compiler variable
> in hake/X86_64.hs (for example) to something else.
> Hope this helps,
> Simon
> On 26.08.2011 09:58, Georgios Varisteas wrote:
>> Hi,
>> What's the best way to setup hake to use a different compiler for a specific module?
>> Best regards,
>> Georgios Varisteas
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>> Barrelfish-users mailing list
>> Barrelfish-users at lists.inf.ethz.ch
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