+ Made sure all tex examples are made

docs/videoex/Makefile

@@ -37,6 +37,7 @@ OBJECTS=ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8
 #        ex10 ex11 ex12 ex13  ex14 ex15 ex16 ex17 ex18
 
 TEXOBJECTS=$(addsuffix .tex, $(OBJECTS))
+override TEXOBJECTS:=$(TEXOBJECTS) vidutil.tex viddbg.tex
 
 all : $(OBJECTS)