Process only the materials/ files to create the packages and patches files.

common/common-functions

@@ -577,7 +577,7 @@ build_patches_file() {       # Supply a suitably formated list of patches.
          xsltproc -xinclude  \
                   -o patcheslist_.wget \
                   patcheslist.xsl \
-                  $BOOK/${ARCH}-index.xml   
+                  $BOOK/materials/${ARCH}-chapter.xml
       ;;
     *)  return
   esac
@@ -696,7 +696,7 @@ extract_commands() {         #
       xsltproc -xinclude  \
                -o packageslist_.wget \
                packageslist.xsl \
-               $BOOK/${ARCH}-index.xml   
+               $BOOK/materials/${ARCH}-chapter.xml
 
       # This has the correct format but contains packages from every book
       grep "\-version " $BOOK/packages.ent | sed -e 's@<!ENTITY @@' \