David Cantrell <da...@cantrell.org.uk> writes:
> On Thu, Dec 06, 2012 at 06:36:28PM +0900, Shmuel Fomberg wrote:
>
>> I'm not an expert, but I think that the .yml file is there for the
>> automatic tools, not for installation.
>> In the installation process only Makefile.PL is used.
>
> I'm not sure if that's still the case with a modern CPAN.pm, but it
> certainly is with the older one that you'll find installed just about
> everywhere.
The logic is the following: per default META.{yaml,json} files are not
authoritative, but for the two parameters
configure_requires
dynamic_config
'configure_requires' must be satisfied first. After that the parameter
'dynamic_config' is checked: if it's missing, it defaults to true. If
it's true, then the {Build,Makefile}.PL is used to determine the
remaining dependencies. Otherwise the META file determines them.
(1) has a META.{yml,json}? no goto (4)
yes
(2) has configure_requires yes satisfy configure_requires,
fall through
no
(3) dynamic_config exists and is false satisfy dependencies, fall
through
yes
(4) {Build,Makefile}.PL
--
andreas
