On 11/06/2017 09:54 PM, Clay Thompson wrote:
>
> Usually when I install from source/devel, I install as root ("sudo
> make"). But Sage will not allow me to do that.
General advice, not specific to SageMath:
Most software should be built as an unprivileged (i.e. non-root) user.
It's only when you want to install the result in a location like
/usr/local that you would need to escalate to root with "sudo make
install ..."
Root permissions are needed to write to /usr, but they aren't needed to
read any of the system libraries, or to write the build junk to the
project directory, or to execute the compiler, etc. By running "sudo
make", you run the risk of executing any bad code in the project's build
system as root. (The "make install" could do something bad, too -- but
that one thing is a lot easier to audit than the entire build system of
SageMath and its dependencies.)
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