Build failed in Jenkins: kdelibs_frameworks_qt5 #403

[Stephen Kelly]

KDE CI System wrote:

> -- Performing Test __KDE_HAVE_FPIE_SUPPORT
> -- Performing Test __KDE_HAVE_FPIE_SUPPORT - Success

I don't think this option makes sense either. By default, Qt requires that 
PIE is used, and it sets Qt5_POSITION_INDEPENDENT_CODE if it does need to be 
used. 

CMake already knows how to enable PIE using the POSITION_INDEPENDENT_CODE 
property.

Thanks,

Steve.