Qmake gives "Unknown test function: for"

[Lindley]

I'm trying to use a for loop in my .pri file:

[code]
CONFIG += info
info {
for (thing,THINGS) {
# stuff
}
}
[/code]

But when I attempt to build, I get the error:
Unknown test function: for

My google-fu has so far turned up several suggestions that I might be using the qmake from QT3 rather than QT4; however, I've checked one of the Makefiles produced before I added this line, and it says
[quote]
#############################################################################

Makefile for building: UnitTests

Generated by qmake (2.01a) (Qt 4.8.5) on: Thu Dec 12 12:46:52 2013

Project: ../qmake/UnitTests.pro

Template: app

Command: /usr/local/Trolltech/Qt-4.8.5/bin/qmake -spec /usr/local/Trolltech/Qt-4.8.5/mkspecs/linux-g++ CONFIG+=debug CONFIG+=declarative_debug -o Makefile ../qmake/UnitTests.pro

#############################################################################
[/quote]
so it doesn't look like that's the problem in my case.

Any help?

[Lindley]

Found the problem. Apparently for(thing,THINGS) works fine; for (thing,THINGS) does not. Note the whitespace.