+Group: Networking/Utilities
+Source0: http://toxygen.net/6tunnel/%{name}-%{version}rc1.tar.gz
+# Source0-md5: b325fa9d238e32195fbb3fc3646b0d28
+URL: http://toxygen.net/6tunnel/
+# probably not needed, but used if found, so BR or BC is needed
+# to force stable build environment
+# (should be disabled in configure if not needed)
+BuildRequires: autoconf
+BuildRequires: libinet6