Using qmake to build multiple apps and libs

[marchand]

I wound up specifying multiple project files, one for each library/app, and an overall "controlling" project file. The general scheme is that the main project file merely calls the other project files in order, compiling each in turn. I used the subdir directive, but did not need to actually put everything in sub-directories, merely by adding the ".pro" suffix onto the names I put in the SUBDIRS directive.