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Wireshark-dev: Re: [Wireshark-dev] Cookbook to make ubuntu 16.04 bot on buildbot

From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Wed, 5 Jul 2017 00:56:45 -0700
On Jul 5, 2017, at 12:41 AM, Remy Leone <remy.leone@xxxxxxxx> wrote:

>         "In file included from iface_monitor.c:55:0:",
>         "/_usr/include/net/if.h:129:0: error: \"IFNAMSIZ\" redefined [-Werror]",

1) Why is there a /_usr directory?

2) Is it different from /usr, or is /_usr/include the same as /usr/include (with, for example, a symlink)?

3) Why is it picking up a header from /_usr/include rather than /usr/include?

4) What are the differences, if any, between /usr/include and /_usr/include?