Install_prereq return 1 as exit code without appearent reason

Asterisk Asterisk Support
1

Hello,

Testing 20.7.0 on Bookworm host, I’ve got this:

echo 0|sh /usr/src/asterisk-20.7.0/contrib/scripts/install_prereq install

echo $?

1

In other words, no visible error but exit code set to 1.
To reproduce this, just run install_prereq twice: first will run OK while second one would show above behaviour.

Thoughts ?

Cheers