From: Martin Mares <mj@ucw.cz>
Date: Fri, 12 Jan 2007 20:10:55 +0000 (+0100)
Subject: Don't run bibtex if there are no citations.
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;ds=inline;h=4b45037667d9abaa3e566e2d7cc2dd45e91d7f80;p=ga.git

Don't run bibtex if there are no citations.
---

diff --git a/Makerules b/Makerules
index 4db4413..5016830 100644
--- a/Makerules
+++ b/Makerules
@@ -1,10 +1,7 @@
 all: $P.ps
 
 %.dvi: %.tex ../sgr.tex ../ga.bib
-	csplain $<
-	bibtex $*
-	csplain $<
-	csplain $<	# BibTeX requires 3 passes of TeXing!
+	csplain $< && if grep -q citation $*.aux ; then bibtex $* && csplain $< && csplain $< ; fi
 
 %.pdf: %.tex ../sgr.tex
 	pdfcsplain $<