optional_depends	perl 		"--with-perl" 	"--without-perl" 	"enable perl bindings"
optional_depends 	python 		"--with-python" "--without-python" 	"enable python bindings"
optional_depends 	swig 		"--with-swig" 	"--without-swig" 	"enable swig"
optional_depends	gnutls		""		""			"enable gnu tls"
optional_depends	libgcrypt 	""		""			"enable libgcrypt"
