--- octomap-1.9.8/octovis/CMakeModules/FindQGLViewer.cmake_org	2023-05-07 14:44:07.236461376 +0800
+++ octomap-1.9.8/octovis/CMakeModules/FindQGLViewer.cmake	2023-05-07 14:44:19.473495127 +0800
@@ -83,7 +83,7 @@
 	MESSAGE(STATUS "\t generating Makefile using qmake") 
 	EXECUTE_PROCESS(
 	  WORKING_DIRECTORY ${QGLVIEWER_BASE_DIR}
-	  COMMAND qmake
+	  COMMAND qmake-qt5
 	  OUTPUT_QUIET
 	  )
       ENDIF(QMAKE-QT4)