depends  intltool              &&
depends  libx11                &&
depends  libxext               &&
depends  libxres               &&
depends  glib2                 &&
depends  gtk+2                 &&
depends  xml-parser-expat      &&

optional_depends startup-notification  \
       "--enable-startup-notification" \
       "--disable-startup-notification" \
       "for notification support" &&

optional_depends  gtk-doc                              \
                  '--enable-gtk-doc'                   \
                  '--disable-gtk-doc'                  \
                  'Build documentation with gtk-doc' &&

optional_depends gobject-introspection               \
                 "--enable-introspection=yes"        \
                 "--enable-introspection=no"         \
                 "to enable introspection"

.