Hi Sage-on-Gentoo team, This mail is informative, no action required. I just saw that you are having gfan in your overlay. I also have it the science overlay. You apply a patch (which I don't) with # TODO: find out what this patch actually fixes epatch "${FILESDIR}"/${P}-fix-polynomial.patch I also know the author of the software a little. Let's join forces and work on it in http://bugs.gentoo.org/show_bug.cgi?id=293381 Regards, Thomas -- Thomas Kahle The fundamental theorem of algebra is open source. Like any other mathematical theorem it can be applied free of charge and everybody has access to its proof and can convince himself how it works. Why should software be any different?