Why does Qt use its own make tool, qmake?

Question

I just started using Qt and noticed that it uses its own make tool, qmake.

• Why does Qt use its own make tool?
• Is there something special that prevents

Answer 1

By the way, this was true until Qt 5.x, included. Qt 6 is now switching to CMake instead. At least for building Qt itself, but it seems reasonable to expect that cmake will then be recommended for building Qt applications themselves rather than qmake. Especially since the lead qmake developer no longer work for the Qt Company. Finally an industry-standard tool instead of an in-house one :-)