I just checked out develop and built it, without any trouble, EXCEPT, that the documentation isn't typeset properly.
I am using Firefox 37.0.1 on kubuntu 14.04. I do not have this problem with sage 6.5 on this machine. Mathjax (I think) briefly displays a warning, which ends with File failed to load: file://..._static/FONTS/HTML-CSS/TeX/png/imagedata.js (very hard to see, because it disappears again...) The LaTeX is output verbatim, that is, there are not the usual red error boxes. Also, hovering over it, the mathjax configuration box does not appear. For example, in file:///home/martin/sage-develop/src/doc/output/html/en/reference/algebras/sage/algebras/weyl_algebra.html I see: Let \(R\) be a commutative ring. The (differential) Weyl algebra \(W\) is the algebra generated by \(x_1, x_2, \ldots x_n, \partial_{x_1}, \partial_{x_2}, \ldots, \partial_{x_n}\) subject to the relations: \([x_i, x_j] = 0\), \([\partial_{x_i}, \partial_{x_j}] = 0\), and \(\partial_{x_i} x_j = x_j \partial_{x_i} + \delta_{ij}\). Therefore \(\partial_{x_i}\) is acting as the partial differential operator on \(x_i\). Help! I cannot review tickets! Martin -- 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.