qmake | .pro and -config

[migel]

Thought specifying -config you can run the scoped code.

debug {
    DEFINES += SD_DEV
    message("debug")
}
 
release {
   message("release")
}
 
qmake p.pro -config release
Project MESSAGE: debug
Project MESSAGE: release

debug {
    DEFINES += SD_DEV
    message("debug")
}

release {
   message("release")
}

qmake p.pro -config release
Project MESSAGE: debug
Project MESSAGE: release

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Should I have only release message ?

[ChrisW67]

Both release and debug can be in CONFIG at the same time, and the last one wins (put CONFIG in a message to see the default). You want to use the CONFIG() function:

CONFIG(debug, debug|release)  {
    message("debug")
}
 
CONFIG(release, debug|release)  {
    message("release")
}

CONFIG(debug, debug|release)  {
    message("debug")
}

CONFIG(release, debug|release)  {
    message("release")
}

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and then:

$ qmake test.pro
Project MESSAGE: release
$ qmake CONFIG+=debug test.pro
Project MESSAGE: debug
$ qmake CONFIG+=release test.pro
Project MESSAGE: release

$ qmake test.pro
Project MESSAGE: release
$ qmake CONFIG+=debug test.pro
Project MESSAGE: debug
$ qmake CONFIG+=release test.pro
Project MESSAGE: release

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[migel]

yeah, thanks, I found that. I just don't understand purpose of running both. What is that for then ?