[blfs-support] ntp depends on libcap2 when use "-u" option.

xinglp xinglp at gmail.com
Mon Mar 11 08:10:10 PDT 2013

2013/3/11 Pierre Labastie <pierre.labastie at neuf.fr>:
> Le 11/03/2013 15:01, xinglp a écrit :
>> 2013/3/11 Armin K.<krejzi at email.com>:
>>> On 03/11/2013 03:57 AM, xinglp wrote:
>>>> We just need to install libcap2 before ntp, and it will auto detect.
>>> Thanks for the info. I had libcap2 present at build time since I install
>>> it early so I didn't notice. I've been using -u ever since.
>> You can verify it by run 'ldd $(which ntpd)|grep libcap'.
>> BTW: Where can I get the information of a package is need by others
>> and vice-versa in some other distro.
> On distros based on Debian (that is Ubuntu, Knoppix...),
> I launch aptitude, then I look for the package
> (type / as a shortcut, then the name of the package).
> then type return when the name of the package you
> seek is highlighted.
> You get some information about the package,
> one of which is the dependencies (Depends).
> For example, for ntp, it lists:
> adduser
> libc6
> libcap2
> libedit2
> libopts25
> libssl1.0.0
> lsb-base
> netbase
> -------------------
> It also lists which packages depend on the one you are
> looking at.
> In case you do not know which package owns a specific
> file, you can use 'apt-file search'. To install apt-file:
>  > sudo apt-get install apt-file
>  > sudo apt-file update
> You cannot get all the build dependencies this way.
> 'apt-build info' seems to do the trick, but I do not
> have much experience with it.
> Regards
> Pierre
Thank you.
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