require_once 'PEAR/Dependency.php';
mixed PEAR_Dependency::checkOS (string &$errmsg, string $os)
mixed PEAR_Dependency::checkOS
Operating system dependencies check method
this variable will contains an error message, if check fail
Name of the operating system
mixed - FALSE if dependency could be resolved successfully(!); or an PEAR_DEPENDENCY_* constant in case of unresolved dependency.
This function can not be called statically.
