gtkmm: update to 2.22.0.

srcpkgs/gtkmm/gtkmm-devel.template

@@ -5,8 +5,6 @@ long_desc="${long_desc}
 
  This package contains files for development, headers, static libs, etc."
 
-revision=1
-
 Add_dependency run pkg-config
 Add_dependency run glib-devel
 Add_dependency run atk-devel
@@ -17,6 +15,7 @@ Add_dependency run fontconfig-devel
 Add_dependency run gtk+-devel
 Add_dependency run libsigc++-devel
 Add_dependency run glibmm-devel
+Add_dependency run atkmm-devel
 Add_dependency run pangomm-devel
 Add_dependency run cairomm-devel
 Add_dependency run gtkmm