GNU Guix depends on the following packages:
@itemize
-@item @url{http://gnu.org/software/guile/, GNU Guile}, version 2.0.5 or later;
+@item @url{http://gnu.org/software/guile/, GNU Guile}, version 2.0.7 or later;
@item @url{http://gnupg.org/, GNU libgcrypt};
@end itemize