-BuildRequires: ruby
-Requires: babl >= 0.1.2
-Requires: glib2 >= 1:2.22.0
-Requires: libopenraw >= 0.0.5
-Requires: librsvg >= 1:2.14.0
+BuildRequires: poppler-glib-devel >= 0.71.0
+BuildRequires: python >= 1:2.5.0
+# either one?
+#BuildRequires: python-pygobject-devel >= 2.26
+BuildRequires: python-pygobject3-devel >= 3.2
+BuildRequires: poly2tri-c-devel
+BuildRequires: ruby >= 1.9
+%{?with_vala:BuildRequires: vala >= 2:0.20.0}
+Requires: babl >= %{babl_version}
+Requires: gdk-pixbuf2 >= 2.32.0
+Requires: glib2 >= 1:2.44.0
+Requires: jasper-libs >= 1.900.1
+Requires: lensfun >= 0.2.5
+Requires: libraw >= 0.15.4
+Requires: librsvg >= 1:2.40.6
+Requires: libtiff >= 4.0.0
+Requires: mrg-libs >= %{mrg_version}
+Requires: pango >= 1:1.38.0