Have Gtk-Doc ignore UCDN files
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index ffbcb70..f7a4ad6 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -30,9 +30,17 @@
# e.g. SCAN_OPTIONS=--deprecated-guards="GTK_DISABLE_DEPRECATED"
SCAN_OPTIONS=--rebuild-types --deprecated-guards="HB_DISABLE_DEPRECATED"
+# Header files or dirs to ignore when scanning. Use base file/dir names
+# e.g. IGNORE_HFILES=gtkdebug.h gtkintl.h private_code
+IGNORE_HFILES=`cd $(top_srcdir)/src; find . -path './hb-*/*.h' | sed 's@^.*/@@'`
+if HAVE_GOBJECT
+else
+IGNORE_HFILES+=hb-gobject.h hb-gobject-enums.h hb-gobject-structs.h
+endif
+
# Extra options to supply to gtkdoc-mkdb.
# e.g. MKDB_OPTIONS=--xml-mode --output-format=xml
-MKDB_OPTIONS=--source-suffixes=h,cc --xml-mode --output-format=xml
+MKDB_OPTIONS=--source-suffixes=h,cc --xml-mode --output-format=xml --ignore-files="$(IGNORE_HFILES)"
# Extra options to supply to gtkdoc-mktmpl
# e.g. MKTMPL_OPTIONS=--only-section-tmpl
@@ -55,14 +63,6 @@
# e.g. EXTRA_HFILES=$(top_srcdir}/contrib/extra.h
EXTRA_HFILES=$(top_builddir)/src/hb-version.h
-# Header files or dirs to ignore when scanning. Use base file/dir names
-# e.g. IGNORE_HFILES=gtkdebug.h gtkintl.h private_code
-IGNORE_HFILES=`cd $(top_srcdir)/src; find . -path './hb-*/*.h' | sed 's@^.*/@@'`
-if HAVE_GOBJECT
-else
-IGNORE_HFILES+=hb-gobject.h hb-gobject-enums.h hb-gobject-structs.h
-endif
-
# Images to copy into HTML directory.
# e.g. HTML_IMAGES=$(top_srcdir)/gtk/stock-icons/stock_about_24.png
HTML_IMAGES=
