Hi all, I am currently trying to get sage to use a system wide singular. This is provided by sage-core-4.5.1-r1 and sage-4.5.1-r1 which are masked. You have to use the latest version of the singular ebuild with the libsingular use flag. If you don't have a folder /usr/include/singular merge singular again as we added some headers that are needed to compile sage-core this week end.
It currently segfault on my machine - you've been warned - but I am working to fix it with Thomas Khale. It is uncertain at the moment if sage-4.5.2 (from upstream) will use this version of singular or not - it was planned for 4.5 then 4.5.1 and someone else upstream experience segfaults with it - on Solaris. So upstream move may be delayed again. However we want to get rid of sage-singular ASAP. Francois
