how do I install an spkg?

edit

The **sage -i** command also works if you have downloaded the spkg: sage -i

Or if you haven't downloaded it yet, just type "sage -i cadabra" and it should look up the version number and download the file.

I tryed, but: make: * No rule to make target 'all-toolchain'. Stop. how to solve?

What version of Sage are you using? Did you download a binary version or source?

And there is `sage -f -m` which installs the spkg and does *not* delete the build directory from `spkg/build`, which can be useful for debugging.

This apparently now `sage -f -s`, according to the deprecation warning I get.