global vars in .pro file

xalisonx

Hi all, I need to deploy my qt application in various "version". The difference between this versions are only the repository where the application read the initial configuration.

My idea is to define a variable in the .pro, and then use this in my cpp code also.
(I have to change the "TARGET" in the .pro).
Is it possible?
What is the best solution?

SGaist

Hi,

Do you mean something like:
qmake MYCONFIG=foo

contains(MYCONFIG, foo) {
TARGET = foo_bar
}

?

xalisonx

Hi SGaist,
thanks for your support!

I mean something like, in the .pro file:

TARGET = MYAPPNAME
DEFINES+= MYTARGET="$${TARGET}"

I would use the MYTARGET in the cpp code, like this:

QString baseRepository = "/basepath/"+ MYTARGET;

Or something similar?

swegmann

Hi,

What you could do is this in the .pro file:

TARGET = foo
DEFINES += MYTARGET="$(TARGET)"

However then you need to make sure to use the MYTARGET define in your source code with some sort of stringify mechanism to turn it into a string. You find lots of hits if you search for "C++" and "Stringify", just like http://stackoverflow.com/questions/20384709/how-to-stringify-a-string-which-contains-a-comma

Is this what you are looking for?

SGaist

The define itself will also need to escaped in order to have " correctly in the shell.