deactivating dep listed in both depends_{build,lib}

[Joshua Root]

On 2013-7-26 01:12 , Lawrence Velázquez wrote:
> On Jul 25, 2013, at 10:40 AM, Bradley Giesbrecht <pixilla at macports.org> wrote:
> 
>> $ port -q installed libmemcached ; port -q deps libmemcached
>> libmemcached @1.0.10_0 (active)
>> Build Dependencies:   gcc46
>> Library Dependencies: memcached, gcc46
> 
> The build dependency is coming from the Portfile; the library dependency is coming from base.
> 
> The Portfile is declaring the dependency incorrectly, in multiple ways: (1) the dependency on GCC should be a library dependency, and (2) it wipes out the existing build dependencies (perl5 and cyrus-sasl2).
> 
>> I am surprised that I can deactivate gcc46 without warning or forcing. Is this intended behavior?
> 
> Probably not. The build dependency is being declared after the library dependency; maybe it overrides it somehow?

I would guess libmemcached was installed before base was updated to 2.2,
and thus didn't have a lib dep on gcc46 recorded in the registry.

Separately but related, it might be interesting to check if it does in
fact link to libraries provided by gcc46.

- Josh