Basic support code for an application's main library.
Some or most of the application code may be useful as a shared library so that the application may be extended using plug-ins that make use of the code in the library.
This pile provides the base class for the management class of such a library in AppLib, a class derived from QObject to be able to use the Qt signaling mechanism.
By using AppLib's changeState() the implementation ensures that any interested parties are informed about the change in the current status of the library. This mechanism is used by the plgin pile to implement plug-ins.
The pile also has a set of useful macros in applib-util.h including support for cross-compiler breakpoints, debug helpers and general code tricks.