Switched from latexmk to R CMD texi2dvi.

The reason was that pgfSweave's caching did not seem to
work properly with latexmk (I suspect latexmk did not
run the externalization commands, which pgfSweave does).

chertex.sh

@@ -67,8 +67,10 @@ if [ $# -eq 1 ]; then
    fi
 	
 	# Run pdflatex, bibtex, and company
-	echo "<cheRTeX> Calling LaTeXMK"
+	#echo "<cheRTeX> Calling LaTeXMK"
-	latexmk $jobname -pdf -bibtex
+	#latexmk $jobname -pdf -bibtex
+	echo "<cheRTeX> Calling texi2dvi()"
+	R CMD texi2dvi --pdf --verbose $jobname.tex
 	
 	# Don't bother with this. Let latexmk take care of cleaning up
 	# Move unnecessary auxiliary files generated