CMake newer than 2.8.12 automatically adds the
appropriate flag, but CI still runs 2.8.11.
Change-Id: Ie61375f2feb54a92c9d8f0ed6ad5227a67343bc5
Reviewed-by: Stephen Kelly <ske@ableton.com>
Used by features in CMake 2.8.11.
This matches the features in FindQt4 in that version of CMake,
namely that the IMPORTED targets contain the appropriate
INTERFACE_INCLUDE_DIRECTORIES and INTERFACE_COMPILE_DEFINITIONS
and that the qtmain.lib static library is automatically linked to
on Windows by executables. Additionally, the
INTERFACE_POSITION_INDEPENDENT_CODE property is set appropriately
if Qt requires users to use position independent code.
Change-Id: Ide341f43fcaf7d722a7bdf1a12b1071c7e548ccc
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>