Try to cope with Squeeze and Sid xetex problems.

On Sid, "xdvipdfmx -p a5 -l" outputs its first page in A4 portrait.
So guess which we're using and use the appropriate invocation.

makeBooke.sh

@@ -70,9 +70,20 @@ cd $builddir
 
 # The version of xetex on Squeeze doesn't do pass the A5 landscape instruction
 # down to the PDF generator. So split out and do manually.
-xelatex -no-pdf $output
-xelatex -no-pdf $output
-xdvipdfmx -p a5 -l $outputxdv
+#
+# And, sigh, this fails on Sid. The first page comes out as A4 portrait.
+# So try to work out which we are using and run the appropriate command.
+ver=`xetex -version | head -n 1`
+ver=${ver/*TeX Live /}
+ver=${ver/\/*/}
+if [ "$ver" == "2009" ]; then
+    xelatex -no-pdf $output
+    xelatex -no-pdf $output
+    xdvipdfmx -p a5 -l $outputxdv
+else
+    xelatex $output
+    xelatex $output
+fi
 xelatex $outputa4
 
 mv $outputpdf $dir/$1.pdf