-# Hack: dblatex normalises the name of the input file using
-# os.path.realpath, which means that if we're in a linked build tree,
-# it won't be able to find ug-book.xml which is in the build tree but
-# not in the source tree. Hence, we copy ug-book.xml to the source
-# tree. This is a horrible hack, but I can't find a better way to do
-# it --SDM (2009-05-11)
-
-build_ug_book = docs/users_guide/ug-book.xml
-src_ug_book = $(dir $(realpath $(dir $(build_ug_book))/ug-book.xml.in))ug-book.xml
-
-ifneq "$(build_ug_book)" "$(src_ug_book)"
-$(src_ug_book) : $(build_ug_book)
- "$(CP)" $< $@
-docs/users_guide/users_guide.pdf docs/users_guide/users_guide.ps: $(src_ug_book)
-endif
+$(eval $(call clean-target,docs/users_guide,gen,$(docs/users_guide_GENERATED_DOCBOOK_SOURCES)))
+
+html_docs/users_guide : docs/users_guide/users_guide/prof_scc.png
+
+docs/users_guide/users_guide/prof_scc.png : \
+ docs/users_guide/prof_scc.png \
+ docs/users_guide/users_guide/index.html
+ $(CP) $< $@
+# dep. on d/u/u/index.html is to make sure that the d/u/u dir is created first
+