Package: libc6 Version: 2.10.1-0exp1 Severity: importantE.g. apt-get's call to getaddrinfo() returns with EAI_SYSTEM when /etc/hosts is missing and EAI_NONAME if /etc/hosts is empty. This is different from 2.9, where EAI_NONAME is returned in both cases, resulting in the regression in apt-get. `sudo whoami' prints an additional error message but works as expected otherwise.