Problem with lilypond-book after upgrading to 2.11.43-2

[René Brandenburger]

Hi list,

after upgrading from 2.11.35 to 2.11.43-2, my call to lilypond-book does
not work anymore.

I used to call lilypond-book the following way: 

lilypond-book --pdf --include=BookIn --include=. --output=BookOut
SongBook.tex

and it always worked fine, but after the upgrade, I get the following: 

lilypond-book (GNU LilyPond) 2.11.43
lilypond-book: Fehler: Ausgabe würde Eingabedatei überschreiben;
verwenden Sie --output.

thanks in advance for any advice

rene