How use conditions in Qt .pro file

[hubbobubbo]

Hi

I want to do something like this in order to stub out parts of my code when building but I do not know how to achive something similar to ifdef in the Qt pro file:

I would like to do this:

DEFINES += USE_LIBS // I want to build with all my libs

ifdef USE_LIBS
LIBS+= -lmylib1 -lmyLib2
else
//Stub out parts of the app by not including the libs. The USE_LIBS will be 0 and the corresponding includes in the code will be removed with the USE_LIBS define.
endif

Can this conditional building be done in the pro file, if not how can I achive this?

[tbscope]

Yes you can do that.
Check out http://doc.qt.nokia.com/4.6/qmake-manual.html

[schall_l]

Do you have an example ?

[wysota]

use_libs {
  LIBS += -lmylib1 -lmylib2
} else {
# Stub out parts of the app by not including the libs.
}

use_libs {
  LIBS += -lmylib1 -lmylib2
} else {
# Stub out parts of the app by not including the libs.
}

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Then call qmake CONFIG+=use_libs

[frankiefrank]

Thank you wysota! You helped me to get on the right track!