Index: local.tex
===================================================================
--- local.tex	(Revision 535)
+++ local.tex	(Arbeitskopie)
@@ -2,7 +2,11 @@
 \newif\iffull \fullfalse
 \newif\ifdraft  \drafttrue
 
-\input{texdirectives}
+\IfFileExists{texdirectives.tex}
+             {\input{texdirectives}}
+             {\typeout{== ERROR == The dynamicly generated file `texdirectives.tex' couldn't be found. You should
+                 use `make` to build the manual for Unison (`unison-manual.pdf'). Don't use your
+                 regular TeX-environment.}\stop}
 \input{unisonversion}
 
 \newcommand{\finish}[1]{\ifdraft{\ifhevea\red\else \large\bf\fi [#1]\ifhevea\fi}\fi}