diff -up qwt-6.1.3/designer/designer.pro.no_rpath qwt-6.1.3/designer/designer.pro
--- qwt-6.1.3/designer/designer.pro.no_rpath 2016-06-13 02:14:23.019600853 -0500
+++ qwt-6.1.3/designer/designer.pro 2017-03-08 12:11:49.591323453 -0600
@@ -83,7 +83,7 @@ contains(QWT_CONFIG, QwtDesigner) {
# compile the path for finding the Qwt library
# into the plugin. Not supported on Windows !
- QMAKE_RPATHDIR *= $${QWT_INSTALL_LIBS}
+ #QMAKE_RPATHDIR *= $${QWT_INSTALL_LIBS}
qwtAddLibrary($${QWT_OUT_ROOT}/lib, qwt)
contains(QWT_CONFIG, QwtDll) {