Changed latex command to pdflatex.

docs/rules.mk

@@ -12,5 +12,5 @@ $(b)%.pdf: $(d)%.tex
 
 $(b)$(REPORT).bbl: $(d)$(REPORT).bib
 	BIBINPUTS=$(d) bibtex8 ${@:.bbl=.aux}
-	latex $(PDFLATEX_FLAGS) $(d)$(REPORT).tex
+	pdflatex $(PDFLATEX_FLAGS) $(d)$(REPORT).tex
 	pdflatex $(PDFLATEX_FLAGS) $(d)$(REPORT).tex