diff -ur /CMakeLists.txt /CMakeLists.txt
--- /CMakeLists.txt	2018-05-31 02:29:47.000000000 +0200
+++ /CMakeLists.txt	2018-06-03 09:34:15.109877528 +0200
@@ -861,7 +861,7 @@
 # libhamlib setup
 #
 set (hamlib_STATIC 1)
-find_package (hamlib 3 REQUIRED)
+set (hamlib_LIBRARIES hamlib)
 find_program (RIGCTL_EXE rigctl)
 find_program (RIGCTLD_EXE rigctld)
 
@@ -1343,7 +1343,8 @@
       )
   endif ()
 endif ()
-qt5_use_modules (wsjtx SerialPort) # not sure why the interface link library syntax above doesn't work
+find_package (Qt5SerialPort)
+target_link_libraries (wsjtx Qt5::SerialPort)
 
 # make a library for WSJT-X UDP servers
 # add_library (wsjtx_udp SHARED ${UDP_library_CXXSRCS})
@@ -1364,7 +1365,8 @@
   )
 target_compile_definitions (wsjtx_udp-static PUBLIC UDP_STATIC_DEFINE)
 #qt5_use_modules (wsjtx_udp Network)
-qt5_use_modules (wsjtx_udp-static Network Gui)
+target_link_libraries (wsjtx_udp-static Qt5::Network Qt5::Gui)
+
 generate_export_header (wsjtx_udp-static BASE_NAME udp)
 
 add_executable (udp_daemon UDPExamples/UDPDaemon.cpp UDPExamples/udp_daemon.rc ${WSJTX_ICON_FILE})