--- src/qmapshack/CMakeLists.txt.orig	2020-03-27 08:07:31 UTC
+++ src/qmapshack/CMakeLists.txt
@@ -920,7 +920,7 @@ target_link_libraries(${APPLICATION_NAME}
     Qt5::Help
     ${DBUS_LIB}
     ${GDAL_LIBRARIES}
-    ${PROJ4_LIBRARIES}
+    ${PROJ4_LDFLAGS} ${PROJ4_LIBRARIES}
     ${ROUTINO_LIBRARIES}
     ${ALGLIB_LIBRARIES}
     ${QUAZIP_LIBRARIES}