Is it possible to roll-back all of MacPorts to earlier version?

Fielding, Eric J (329A) eric.j.fielding at
Tue Jan 10 18:06:31 UTC 2017

I use the QGIS installed with MacPorts and it has been working great for years. When I did the regular “port selfupdate” and “upgrade outdated” recently, I was not able to get the latest version of QGIS to build, which already had a ticket open. I also find that I cannot run the previous version because it crashes, presumably because one of the dynamically linked libraries changed. I opened a new ticket about this.

I was wondering if there is a way to roll back all of the MacPorts ports to the versions as of a month ago, when QGIS was working for me. I found the “HOW TO” about installing an older version of a single port, which uses the old “svn” system. I tried to use that, but the last version in the svn repository no longer compiles with the present versions of the other libraries. It seems like I would need to get the older versions of all the libraries, and QGIS has quite a long list.

I had an older version of QGIS running on one of my computers until yesterday, but I had to reboot the computer and now I can’t restart it.

Thanks for any suggestions.
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