qmake | .pro and -config

Thought specifying -config you can run the scoped code.

Code:

---

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

---

Should I have only release message ?

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:

Code:

---

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

---

and then:

Code:

---

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

---

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