> On Jan 24, 2016, at 1:42 AM, Vincent Habchi <vi...@macports.org> wrote:
> 
>> Sure. And it is probably also very easy to introduce regressions that way if 
>> the #ifdefs aren't already in place.
> 
> Yeah, that’s right. Every cloud has its silver lining. Or the contrary for 
> that matter.
> 
>> It'll do the same with your /Applications directory or the entire /opt/local 
>> tree.
> 
> Except that it’s no longer possible to compress the build-in Applications 
> with OS X 10.11 since Apple introduced SIP 
> (http://arstechnica.com/apple/2015/09/os-x-10-11-el-capitan-the-ars-technica-review/8/#h1).
>  Even root cannot modify the protected applications (it’s still possible, but 
> it’s a darn intricate process to do it).

I was under the impression that Apple already compressed the files and programs 
installed with the operating system, using HFS compression, ever since taking 
up less disk space was listed as a feature of Snow Leopard.


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