--- ray/CMakeLists.txt	2023/01/11 23:31:17	1.26
+++ ray/CMakeLists.txt	2023/05/16 22:58:18	1.27
@@ -30,17 +30,22 @@ option(BUILD_SHARED_LIBS "Build radiance using shared 
 option(BUILD_HEADLESS "Build radiance without any GUI components?" OFF)
 option(BUILD_PABOPTO_UTILS "Build PABOpto Utilities?" OFF)
 option(BUILD_LIBTIFF "Build libtiff?" OFF)
+option(BUILD_QT "Build Qt related stuff?" OFF)
 
 if(NOT WIN32)
   set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 1)
   install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/doc/man/" DESTINATION man)
-  set(qt_plugin_term "PLUGIN")
+  if(BUILD_QT)
+    set(qt_plugin_term "PLUGIN")
+  endif()
 endif()
 
 if(WIN32)
   set(CPACK_NSIS_INSTALL_ROOT "C:")
   set(CPACK_NSIS_MODIFY_PATH 1)
-  set(qt_plugin_term "LIBRARY")
+  if(BUILD_QT)
+    set(qt_plugin_term "LIBRARY")
+  endif()
 
   # Set RAYPATH on install
   set(CPACK_NSIS_EXTRA_INSTALL_COMMANDS
@@ -118,10 +123,12 @@ endif()
 include(CPack)
 
 if(NOT BUILD_HEADLESS)
+  if(BUILD_QT)
     find_package(Qt5Widgets)
     get_target_property(QT_LIBRARY_DIR Qt5::Core LOCATION)
     get_filename_component(QT_LIBRARY_DIR ${QT_LIBRARY_DIR} PATH)
     get_filename_component(QT_LIBRARY_DIR "${QT_LIBRARY_DIR}/.." ABSOLUTE)
+  endif()
   find_package(X11)
   if(APPLE)
      include_directories(${X11_INCLUDE_DIR})