Questions on dependencies

[Daniel J. Luke]

On Nov 1, 2013, at 3:58 PM, Ryan Schmidt <ryandesign at macports.org> wrote:
> On Nov 1, 2013, at 14:55, Daniel J. Luke <dluke at geeklair.net> wrote:
>> On Nov 1, 2013, at 3:50 PM, Ryan Schmidt <ryandesign at macports.org> wrote:
>>> On Nov 1, 2013, at 14:44, Daniel J. Luke wrote:
>>>> On Nov 1, 2013, at 2:09 PM, Ryan Schmidt wrote:
>>>>> The solution would be for ports that use the ImageMagick libraries to depend on it via depends_lib and for those only needing its programs to depend on it via depends_build and/or depends_run.
>>>> 
>>>> I don't think you can say depends_run means 'only depends on programs' unless we specifically define it to mean that (I can think of a case where something doesn't link with a library or plugin, but loads it at runtime).
>>> 
>>> I didn’t say that. I said perhaps we should make “depends_lib” mean that it depends on (i.e. links with) a library. That doesn’t seem so unreasonable.
>> 
>> the quoted sentence indicates:
>> 
>> 1. depends_lib == linked to it (needs revbump)
>> 2. depends_build/depends_run == only needs its programs.
>> 
>> I'm saying that unless we define depends_build/depends_run as only pertaining to programs, that 2 isn't necessarily true (an application can have a runtime dependency on a library or plugin that it loads at runtime but isn't linked with).
> 
> Sorry if I was unclear. My only proposal is:
> 
> depends_lib should mean that a port links with another port’s library, such that it needs a revbump if that port’s library version increases
> 
> If you link with another port’s library, use depends_lib
> 
> If you do not link with another port’s library, do not use depends_lib

ok, so you don't actually want to fix the problem you have with some things depending on ImageMagic libraries and some things depending on just the programs? :)

--
Daniel J. Luke                                                                   
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