diff -r 25f1e89b5012 -r 99e7b2045d8f doc-src/TutorialI/Makefile
--- a/doc-src/TutorialI/Makefile	Tue Jan 08 20:44:57 2002 +0100
+++ b/doc-src/TutorialI/Makefile	Tue Jan 08 20:45:45 2002 +0100
@@ -29,7 +29,7 @@
 dvi: $(NAME).dvi
 
 $(NAME).dvi: $(FILES) isabelle_hol.eps Types/typedef.eps
-	@ln -sf Types/typedef.eps .
+	@test -r typedef.eps || ln -s ../gfx/typedef.ps .
 	$(LATEX) $(NAME)
 	$(BIBTEX) $(NAME)
 	$(LATEX) $(NAME)
@@ -40,7 +40,7 @@
 pdf: $(NAME).pdf
 
 $(NAME).pdf: $(FILES) isabelle_hol.pdf Types/typedef.pdf
-	@ln -sf Types/typedef.pdf .
+	@test -r typedef.pdf || ln -s ../gfx/typedef.pdf .
 	$(PDFLATEX) $(NAME)
 	$(BIBTEX) $(NAME)
 	$(PDFLATEX) $(NAME)