qmake and *.pro file

[Teuniz]

I would like to make a conditional statement in a *.pro file which checks the current version of Qt using the qmake variable QT_MINOR_VERSION.

Something like:

if(QT_MINOR_VERSION<5)
{
error("you are using an old version of Qt\n");
}

How do I do this with qmake syntax?

[spirit]

have a look at contains in docs about QMake.

[Teuniz]

Thanks. I use the following "code" in a *.pro file to check if Qt version >= 4.5.3:

!contains(QT_MAJOR_VERSION, 4) {
  error("you are using an old version of Qt")
}
 
LIST = 0 1 2 3 4
for(a, LIST):contains(QT_MINOR_VERSION, $$a):error("you are using an old version of Qt")
 
contains(QT_MINOR_VERSION, 5) {
  LIST = 0 1 2
  for(a, LIST):contains(QT_PATCH_VERSION, $$a):error("you are using an old version of Qt")
}

!contains(QT_MAJOR_VERSION, 4) {
  error("you are using an old version of Qt")
}

LIST = 0 1 2 3 4
for(a, LIST):contains(QT_MINOR_VERSION, $$a):error("you are using an old version of Qt")

contains(QT_MINOR_VERSION, 5) {
  LIST = 0 1 2
  for(a, LIST):contains(QT_PATCH_VERSION, $$a):error("you are using an old version of Qt")
}

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