Here is a workaround for this bug:
https://phabricator.wikimedia.org/rEARP1ccedad6487c18f136107992c4c8ff1441800c0c

I tested with this code :

It's done for MediaWiki-extensions-LinkedWiki (see commits in the new extensions: PushAll and NamescpaceData)

@Aklapper if the new version is ok for you. Can you close this task ?

In T172060#6221594, @Krinkle wrote:

In T172060#6221436, @Karima wrote:

In T172060#6221415, @Krinkle wrote:

• What does var_dump(posix_uname(), php_uname('n')); show?

Error : Call to undefined function posix_uname()

OK. I should have separated these. What about var_dump( php_uname('n') );?

For me

In T172060#6221415, @Krinkle wrote:

• Which MW and PHP version is the problem seen on?

Same error with 1.34.1 with

/usr/bin/php /var/www/mediawiki/maintenance/runJobs.php

With a notice for each job:

Notice: Undefined index: SERVER_NAME in /var/www/mediawiki/includes/GlobalFunctions.php on line 1350

Resolved in the LocalSettings with :

$wgOverrideHostname = "http://myservername";

@Aklapper I will remove the folder bundle before december (I work on another thing for the moment). If it's urgent, you can delete the folder bundle. The problem about licenses will disappear.

They are not imported in my code. Look my installation... An user can install or not each extension separately.
https://www.mediawiki.org/wiki/Extension:LinkedWiki#Add_a_tab_Data_for_main_pages_and_user_pages
https://www.mediawiki.org/wiki/Extension:LinkedWiki#Add_a_tab_Push

@Legaulph
Sorry for the delay, I cannot insert new features in the next version. I have to stabilize the precedent features. But I can insert new features in 2020 (when I have a little time).