only print warnings when needed

[koffie]

currently building sage, or installing spkgs or running other scripts which source sage-env might sometimes print

Warning: Attempted to overwrite SAGE_ROOT environment variable

while it's not overwriting or attempting to overwrite SAGE_ROOT

Fixed by #5852.

Component: scripts

Reviewer: Maarten Derickx

Issue created by migration from https://trac.sagemath.org/ticket/11724

[koffie]

apply to scripts repository

[koffie]

comment:1

Attachment: 11724-dont-print-unneeded-waringin-message.patch.gz

note that sage-env is not executable so you need to do

source sage-env

to test it.

[jdemeyer]

comment:2

This is also fixed by #5852, where the SAGE_ROOT detection is completely changed.

So personally, I prefer closing this as "duplicate".

[koffie]

comment:4

that's ok with me

[koffie]

comment:5

Hej Jeroen,

I was just walking trough the open tickets I participated in. Are you still going to close this one as duplicate?

[jdemeyer]

Reviewer: Maarten Derickx