Replace version number in install.sgml during build time

Reviewed-by: iustinp

doc/Makefile.am

@@ -8,8 +8,11 @@ dist_doc_DATA = \
 EXTRA_DIST = hooks.sgml install.sgml admin.sgml
 MAINTAINERCLEANFILES = *.html *.pdf
 
-%.html: %.sgml
+%.sgmltmp: %.sgml
+	sed -e 's#@GANETI_VERSION@#$(PACKAGE_VERSION)#g' < $< > $@
+
+%.html: %.sgmltmp
 	docbook2html --nochunks $<
 
-%.pdf: %.sgml
+%.pdf: %.sgmltmp
 	docbook2pdf $<

doc/install.sgml

@@ -623,8 +623,8 @@ vgextend xenvg /dev/sdd1
       </para>
 
         <screen>
-tar xvzf ganeti-1.2.2.tar.gz
-cd ganeti-1.2.2
+tar xvzf ganeti-@GANETI_VERSION@.tar.gz
+cd ganeti-@GANETI_VERSION@
 ./configure --localstatedir=/var --sysconfdir=/etc
 make
 make install