use fast_depend_prl instead of depend_prl for Qt5
use fast_depend_prl instead of depend_prl for Qt5

details: https://qt.gitorious.org/qt/qtbase/commit/be1116fe909a60341f714d5ce0765798a08722e7

harishnavnit/iris,drizt/iris,orgads/iris,drizt/iris,drizt/iris,harishnavnit/iris,psi-im/iris,orgads/iris,harishnavnit/iris,psi-im/iris,orgads/iris,psi-im/iris