Since there were still people having problems to install sage 5.2 (or higher), here is a discussion on sage-support
https://groups.google.com/d/topic/sage-support/p4VfY9nxsyE/discussion For Travis an me, it worked after instaling libssl-dev as described there. Best, Christian -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.