Hence my question. If Qt4 is installed in /usr and I want to build (T)Qt3 to /usr, how do I avoid conflicts?
In Slackware Qt4 is *not* installed in /usr but in /usr/lib/qt, with many symlinks in /usr. Just don't put conflicting symlinks in /usr.
Yes, I know /usr is not /usr/lib, but that is not what I meant. :-) I meant /usr in a generic sense, which is where /usr/lib resides. I'll have to study how Qt4 is installed and the old way Qt3 was installed too. If I recall, Qt3 was installed in /usr/lib/qt3.
Darrell