How to put generated files (e.g. object files) into a separate folder when using Qt/qmake?

Question

I have a Qt project that uses qmake. To improve clarity and readability, I\'d like to keep the

• source files
• build system
• generated files (suc

Answer 1

You can add the following lines to your *.pro file:

DESTDIR=bin #Target file directory
OBJECTS_DIR=generated_files #Intermediate object files directory
MOC_DIR=generated_files #Intermediate moc files directory

A list of variables is available at the following locations:

• Qt 4.8
• Qt 5

Answer 2

https://wiki.qt.io/Undocumented_QMake#Config_features

object_with_source — outputs each object file into the same directory as its source file (replaced by object_parallel_to_source in the latest versions).
object_parallel_to_source — recreate source folder tree for object files (replaces object_with_source).

in *.pro write

CONFIG += object_parallel_to_source