--- CMakeLists.txt~	2019-09-19 11:56:56.000000000 -0500

+++ CMakeLists.txt	2019-09-19 12:00:30.716178022 -0500

@@ -326,15 +326,8 @@

         set(GLUT_FOUND TRUE)

     endif ()

-    if(GLUT_FOUND)

-        message(STATUS "Glut found: '${GLUT_INCLUDE_DIR}', '${GLUT_LIBRARIES}'")

-    else()

-        message(STATUS "Glut include and library variables: '${GLUT_INCLUDE_DIR}', '${GLUT_LIBRARIES}'")

-        message(FATAL_ERROR "Glut not found.  Building without OpenGL is possible.")

-    endif()

-

-    include_directories(${GLUT_INCLUDE_DIR})

-    list(APPEND DEP_LIBS ${GLUT_LIBRARIES})

+        include_directories(/usr/include/GL)

+        list(APPEND DEP_LIBS -lglut)

 endif()