CMake Config file causes warnings in CMake

The file ITKconfig.cmake installed by this package in /usr/lib/InsightToolkit contains the following on line 50-52:

IF("ON")
  SET(ITK_LIBRARIES ....)
ENDIF("ON")

Having "ON" in a conditional statement is invalid CMake syntax and causes the following warning:

CMake Warning (dev) at /usr/lib/InsightToolkit/ITKConfig.cmake:50 (IF):
  given arguments:

    "ON"

  An argument named "ON" appears in a conditional statement. Policy CMP0012
  is not set: if() recognizes numbers and boolean constants. Run "cmake
  --help-policy CMP0012" for policy details. Use the cmake_policy command to
  set the policy and suppress this warning.
Call Stack (most recent call first):
  /usr/share/cmake-2.8/Modules/FindITK.cmake:48 (FIND_PACKAGE)
  TOOLS/CONVERT_IMA/CMakeLists.txt:11 (FIND_PACKAGE)
This warning is for project developers. Use -Wno-dev to suppress it.

Please change this to IF(1) or, if necessary, remove the IF altogether.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libinsighttoolkit3-dev 3.20.1-1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Sun Aug 12 21:25:26 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: insighttoolkit
UpgradeStatus: Upgraded to precise on 2012-08-02 (10 days ago)