[poppler] regarding qt dependency

[ginzzer]

Hi all,
  I am compiling the poppler 0.22 under windows with mingw/msys. I
google online for compliation instruction and find that popple seems
need qt installed before compliation. Well, since the gcc I am using in
mingw is 4.7.x but qt4 not supporting any gcc higher than 4.4 and qt5
not yet ready for mingw currently. So I just download some pre-compiled
qt4 and copy the critical files to my mingw folder. While I am compiling
poppler, it doesn't report any error. I just wonder how does poppler use
the qt in runtime? Is that possible to disable qt while no affecting the
main feature? Thanks.