PECL package installs fail for PHP 8.0

Symptoms

 You may see PECL installations are failing for PHP 8.0 but not lower versions.

Description 

 This may be caused by the exec function being disabled.

Workaround

The exec function can be enabled by removing it from the disable_function line, as described in the article below. disable_functions must be set at the system level and cannot be configured in a user's php.ini.

How To Edit Your php.ini File The Right Way