Re: [Module::Build] META.yml and platform dependencies.

[Ken W. <ke...@ma...>]

Hi Yves,

This is a known shortcoming of CPAN's approach to dependency  
detection.  There's no solution inside the META.yml itself, though in  
some distant future version we'd like to expand the little language  
that describes dependencies so it would indeed be capable of  
expressing platform-specific dependencies.

In the meantime, I'm not sure what to suggest - if you omit the  
META.yml I assume CPAN would try another method, but I'm not sure.   
It's also possible that if you put dynamic_config => 1 in the  
META.yml it could try another method, but I'm certainly not sure  
about that either. :-/

  -Ken


On Apr 12, 2006, at 12:36 PM, demerphq wrote:

> I have a problem with META.yml generation and platform dependencies.
>
> It looks to me like CPAN is using META.yml to resolve dependencies
> instead of letting Build.PL or Makefile.PL handle it. But there doesnt
> appear to be a way to express that in a  METAL.yml. So when i do a
> build/make dist I end up with a METAL.yml that specifies a win32
> specific dependency, and when people on other OSes try to build they
> try to grab a win32 specifc module.
>
> Before I hack whatever it is that generates the META.yml to handle
> this im wondering if there is anything better to be done? What happens
> if a package doesnt contain a META.yml?
>
> I also think it raises an interesting question. How to express dynamic
> dependencies in a form like META.yml? It seems to me only in a limited
> fashion.