--- QWT-orig/src/src.pro	2018-04-10 18:10:50.950501905 +0200
+++ QWT/src/src.pro	2018-04-11 11:01:54.888535304 +0200
@@ -42,6 +42,11 @@
 target.path    = $${QWT_INSTALL_LIBS}
 INSTALLS       = target 
 
+win32 {
+  dlltarget.path = $${QWT_INSTALL_BIN}
+  INSTALLS += dlltarget
+}
+
 CONFIG(lib_bundle) {
 
     FRAMEWORK_HEADERS.version = Versions
