It seems to me that binary distributions are not guaranteed to be able to build some optional packages. There were numerous reports on sage-support, and here is another example: http://trac.sagemath.org/ticket/18198
However, reading http://sagemath.org/doc/installation/quick-guide.html gives you a false impression to this effect. Should the text in this link be adjusted to tell people to use source distros? Dima -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.