Modified the bibtex part to be more resilient.

makefile

@@ -1,17 +1,17 @@
-
+MASTER  = thesis
 VERSION = v4.4
 NAME    = Max
 SURNAME = Mustermann
 
 all: clean
-	pdflatex thesis.tex
-	bibtex thesis
-	pdflatex thesis.tex
-	pdflatex thesis.tex
+	pdflatex ${MASTER}.tex
+	test -f ${MASTER}-blx.bib && ( bibtex ${MASTER}; pdflatex ${MASTER}.tex ) 
+	pdflatex ${MASTER}.tex
+	ls -l ${MASTER}-blx.bib
 
 clean:
-	@rm -rf *run.xml *-blx.bib *.aux *.bbl *.blg *.brf *.log *.lof *.lot *.lol *.out *.tcp *.toc *.tps *.bak *.backup *.*~
-	@for i in run.xml -blx.bib aux bbl blg brf log lof lot lol out tcp toc tps bak backup ; do find -name *.$$i -exec rm {} + ; done
+	@rm -rf *run.xml *-blx.bib *.aux *.bbl *.blg *.brf *.log *.lof *.lot *.lol *.out *.tcp *.toc *.tps *.bak *.backup *.pdfsync *.synctex.gz *.*~
+	@for i in run.xml -blx.bib aux bbl blg brf log lof lot lol out tcp toc tps bak backup pdfsync synctex.gz; do find -name *.$$i -exec rm {} + ; done
 	@find -name *.*~ -exec rm {} +
 
 cleanall: clean
@@ -19,10 +19,10 @@ cleanall: clean
 
 bz2: clean
 	@echo 'creating package including Docs'
-	@tar --exclude-vcs -cf `pwd`/../thesis-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`.tar `pwd`/../`pwd | sed "s,^\(.*/\)\?\([^/]*\),\2,"`
-	@bzip2 `pwd`/../thesis-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`.tar
+	@tar --exclude-vcs -cf `pwd`/../${MASTER}-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`.tar `pwd`/../`pwd | sed "s,^\(.*/\)\?\([^/]*\),\2,"`
+	@bzip2 `pwd`/../${MASTER}-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`.tar
 
 bz2-small: clean
 	@echo 'creating package excluding Docs'
-	@tar --exclude-vcs --exclude=Docs -cf `pwd`/../thesis-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`_small.tar `pwd`/../`pwd | sed "s,^\(.*/\)\?\([^/]*\),\2,"`
-	@bzip2 `pwd`/../thesis-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`_small.tar
+	@tar --exclude-vcs --exclude=Docs -cf `pwd`/../${MASTER}-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`_small.tar `pwd`/../`pwd | sed "s,^\(.*/\)\?\([^/]*\),\2,"`
+	@bzip2 `pwd`/../${MASTER}-${NAME}_${SURNAME}-${VERSION}-`date +%Y%m%d`_small.tar