Let\'s say I have a Qt application where I have two classes with the same name in two different namespaces:
namespace namespace1 { class SomeClass; } na
You can actually put object files alongside source files by using:
CONFIG += object_parallel_to_source
or
CONFIG += object_with_source
depending on your qmake version.
Source: https://wiki.qt.io/Undocumented_QMake#Config_features