--- ray/InstallRules/CMakeLists.txt	2018/01/08 16:51:31	1.9
+++ ray/InstallRules/CMakeLists.txt	2023/05/16 22:58:18	1.10
@@ -14,7 +14,7 @@ if(TIFF_LIBRARY)
   endif()
 endif()
 
-if(NOT BUILD_HEADLESS)
+if(NOT BUILD_HEADLESS AND BUILD_QT)
   #plugins loaded by rvu at runtime
   get_target_property(GIF_PLUGIN Qt5::QGifPlugin LOCATION)
   get_target_property(ICO_PLUGIN Qt5::QICOPlugin LOCATION)