Using an older port to make another port

[Jeremy Sequoia]

Sent from my iPhone...

> On Mar 4, 2017, at 16:58, Michael <keybounce at gmail.com> wrote:
> 
> 
>> On 2017-03-04, at 4:44 PM, Jeremy Huddleston Sequoia <jeremyhu at apple.com> wrote:
>> 
>> You could just locally revert the offensive change to libarchive until your issue is addressed.
> 
> Ok, how?

git diff HEAD <hash you care about> path/to/port | git apply

Or similar...

> Is it as simple as "copy these files out of the git tree into the /opt tree"? And if so, will that "clean up" automatically the next time I do a selfupdate?
> 
> Is there an environment variable I can set to say "Find the portfiles here, rather than in the default location"? My concern here is that I can easily think of cases where turning back a library requires turning back the programs that use that library.
> 
>> 
>> --Jeremy
>> 
>>> On Mar 4, 2017, at 13:18, Michael <keybounce at gmail.com> wrote:
>>> 
>>> How do I use an older port when making another one?
>>> 
>>> I followed the instructions for working with an older version of libarchive.
>>> Going back to 97887a375da5d0f6abee018b145833aa02e2bda7 gave me libarchive @3.2.2_1 as a pre-built binary, no problems.
>>> 
>>> Now I'm trying to build cmake, which wants libarchive. I've got my git clone at the same (unchanged) checkout, but attempting to install it wants to rebuild libarchive.
>>> 
>>> In other words, the version of libarchive currently installed matches the version at 97887, but building cmake at 97887 ("sudo port install", from the devel/cmake directory) wants to build a fresh libarchive (apparently using the system install port tree).
>>> 
>>> How do I make this work?
>>> And how do I then fix anything else that expects a cmake? (as it will probably try to use the system definition of cmake, which will use the system definition of libarchive, which will break).
>>> 
>>> ---
>>> Entertaining minecraft videos
>>> http://YouTube.com/keybounce
>>> 
>> 
> 
> ---
> Entertaining minecraft videos
> http://YouTube.com/keybounce
>