Need help reverting to older library

[list_email at icloud.com]

> On Dec 6, 2020, at 9:35 AM, Ken Cunningham <ken.cunningham.webuse at gmail.com> wrote:
> 
> of course the simplest method of reverting to an older binary is to just reactivate it if you still have it installed, but inactive, after an update. 
> 
> This will show you what versions are installed:
> 
> port -v installed portname
> 
> and this: 
> 
> port activate portname
> 
I like this approach. Unfortunately, I have only the current version:

   shapelib @1.5.0_0 (active)

Is there some way that I can set this aside and install the version I need and then make it active? According to the usage page,
https://ports.macports.org/port/shapelib/stats?days=30&days_ago=0
someone installed the version I am needing, 1.3.0_0, as recently as last month, November 2020.

Thanks,
Jerry

> will give you a menu of previous versions to activate.
> 
> You may run into linkage troubles, etc, but I use this often to get out of a bind, where port X is updated but port Y that depends on it won't update and is now broken because of port  X being updated.
> 
> This buys me time to fix port Y and then update that in MacPorts, and then restore the current versions of everything.
> 
> Ken
>