<![CDATA[[SOLVED] [QMake] How to conditionally compile code depending on debug/release]]>In a large C++/Qt/QMake/qtcreator project I would like to perform some tests, but only when I am compiling with the debug flag.

Is there a way to tell g++ that some small parts of the code have to be compiled only in debug mode ?

I have tried things like this but without success..

@
#ifdef DEBUG
cout << "We are in Debug" << endl;
#else
cout << "We are in Release" << endl;
#endif
@

I guess I need to put the "DEBUG" flag somewhere in the QMake project, like:
@
CONFIG(release, debug|release) {
TARGET = ffsm
}
CONFIG(debug, debug|release) {
TARGET = ffsm_debug
}
@

]]>https://forum.qt.io/topic/39281/solved-qmake-how-to-conditionally-compile-code-depending-on-debug-releaseRSS for NodeThu, 30 Apr 2026 04:17:04 GMTThu, 20 Mar 2014 15:36:31 GMT60<![CDATA[Reply to [SOLVED] [QMake] How to conditionally compile code depending on debug/release on Thu, 20 Mar 2014 22:01:24 GMT]]>You're welcome !

A little side note since you want do tests, you might be interested by the QTest framework

Happy coding !

]]>https://forum.qt.io/post/219288https://forum.qt.io/post/219288Thu, 20 Mar 2014 22:01:24 GMT<![CDATA[Reply to [SOLVED] [QMake] How to conditionally compile code depending on debug/release on Thu, 20 Mar 2014 15:57:08 GMT]]>thank you, it works the expected way...

]]>https://forum.qt.io/post/219243https://forum.qt.io/post/219243Thu, 20 Mar 2014 15:57:08 GMT<![CDATA[Reply to [SOLVED] [QMake] How to conditionally compile code depending on debug/release on Thu, 20 Mar 2014 15:42:01 GMT]]>Hi and welcome to devnet,

You can use

@#ifdef QT_DEBUG
// My debug related code
#else
// Release only code
#endif@

]]>https://forum.qt.io/post/219241https://forum.qt.io/post/219241Thu, 20 Mar 2014 15:42:01 GMT