-nobase_include_HEADERS = yaml/yaml.h yaml/yaml_version.h yaml/yaml_error.h
+AM_CPPFLAGS = yaml.h
+DOXYGEN_CFG = $(top_srcdir)/doc/doxygen.cfg
+
+nobase_include_HEADERS = $(AM_CPPFLAGS)
+
+if DOXYGEN
+
+html: $(AM_CPPFLAGS) $(DOXYGEN_CFG)
+ PACKAGE=$(PACKAGE) VERSION=$(VERSION) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) doxygen $(DOXYGEN_CFG)
+
+endif
+
+maintainer-clean-local:
+ -rm -rf $(top_builddir)/doc/html
+
+dist-hook: html
+ cp -a $(top_builddir)/doc/html $(top_distdir)/doc