shared cmmi TODO: tesseract-eng-traineddata uses slapos.recipe.build:download-unpacked

We use slapos.recipe.cmmi to benefit from cache, but nothing is
compiled, so it's semantically incorrect

component/tesseract/buildout.cfg

@@ -47,7 +47,13 @@ make-options =
   LIBTOOL=${libtool:location}/bin/libtool
 
 [tesseract-eng-traineddata]
-recipe = slapos.recipe.build:download-unpacked
-strip-top-level-dir = true
+recipe = slapos.recipe.cmmi
+shared = true
 url = http://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.01.eng.tar.gz
 md5sum = 89c139a73e0e7b1225809fc7b226b6c9
+# XXX download-only, but benefit from cache of cmmi
+# XXX we probably need a recipe for that
+configure-command = :
+make-binary = cp -ra $(pwd) @@LOCATION@@
+make-targets =
+