qmake run command only in debug mode, how?

Question

This is kind of a continuation of this question . I want to run

win32:LIBS ~= s/-l(.*)/-l\1d/g

only for debug builds, since the idea is to appen d to lib names in debug mode.

I tried

win32:debug:LIBS ~= s/-l(.*)/-l\1d/g

But so it also executes in release mode.

Answer 1

You need to use CONFIG(debug, debug|release) instead of a simple test for presence of debug . The CONFIG variable is special, in that it can have multiple debug and release entries in it, but only the last one counts .

So, even in release mode, your CONFIG might look like something, debug, something, release : the release "wins" since it's the last, but the scope test doesn't know that.

It's a quirk of qmake. It is even documented, if you know where to look first :/

As the order of values is important in CONFIG variables (that is, the last one set will be considered the active config for mutually exclusive values) a second parameter can be used to specify a set of values to consider. For example:

Answer 2

Thats how I do it normally:

 CONFIG(debug, debug|release) {
    unix:  TARGET = $$join(TARGET,,,d)
    win32: TARGET = $$join(TARGET,,,d)
 }

platform is present because initially I thought to use different conventions for different platforms and giving here just as an example

you can add this rule right after you set a target name for libs/apps

normal layout have this rule in the .pro file for generation your library and something like:

CONFIG(debug, debug|release) {
    unix:   LIBS += -L../libs -L../../libs -lyourlibnamed
    win32: LIBS += -L../libs -L../../libs -lyourlibnamed    
} else {
    unix:   LIBS += -L../libs -L../../libs -lyourlibname
    win32: LIBS += -L../libs -L../../libs -lyourlibname 
}

in a .pri file