depends  autoconf      &&
depends  automake      &&
depends  libtool       &&
depends  libxml2       &&
depends  glib2         &&
depends  gnutls        &&
depends  libgpg-error  &&

optional_depends gtk-doc                            \
                 "--enable-gtk-doc"                 \
                 "--disable-gtk-doc"                \
                 "Build documenation with gtk-doc" 
