I've long found it disappointing the way shared libraries are dealt with in linux and other OSs. To me, the obvious solutions is to install every library into a directory named for the version, or name the library itself with a version number. Then, if you wish, a default version can be chosen and linked/symlinked into the default directory. That way, a program that wants a particular version gives the compiler/linker the appropriate search path to find the preferred version. And of course, once you've built a working version, you can choose to static link it rather than use shared libraries. We solved this in the obvious way at UWaterloo in the late 1980's (as part of xhier). I still shake my head that this kind of thing is still a problem. Cheers! John On Fri, 2017/11/03 11:50:55AM -0400, David Collier-Brown via talk <talk@gtalug.org> wrote: | This has motivated part of the flatpack and related work: for more info that | you wanted, see also https://leaflessca.wordpress.com/2017/02/12/dll-hell-and-avoiding-an-np-comp... | | | --dave