Re: [gentoo-user] lm_sensors: dependency problem...

[Jarry <mr.jarry@gmail.com>]

Albert Hopkins wrote:
> On Sun, 2009-08-23 at 09:42 +0200, Jarry wrote:
>> ____________________________
>>
>> # emerge --pretend lm_sensors
>> These are the packages that would be merged, in order:
>> Calculating dependencies... done!
>> [ebuild  N    ] sys-fs/sysfsutils-2.1.0
>> [ebuild  N    ] x11-misc/read-edid-1.4.2
>> [ebuild  N    ] sys-apps/lm_sensors-2.10.7  USE="-sensord"
>> ____________________________
>>
>> What is that x11-misc/read-edid good for? I do not want to pull
>> the whole x11 stuff with it, as this is a server with no graphics.
> 
> http://bugs.gentoo.org/181029

____

ChangeLog:
03 Jun 2007; Doug Goldstein <cardoe@gentoo.org> 
lm_sensors-2.10.3.ebuild: Add missing depend.
decode-edid.pl needs parse-edid from x11-misc/read-edid
____

I agree with the original poster of this "resolved" bug:
pulling in x11-stuff to server just to be able to monitor
its temperatures is simply dangerous and risky...

>> Next, I want to use sensord for monitoring, so I modified
>> package.use and tried it once more:
>> ____________________________
>>
>> # echo "sys-apps/lm_sensors sensord" >> /etc/portage/package.use
>> # emerge --pretend lm_sensors
>> These are the packages that would be merged, in order:
>> Calculating dependencies... done!
>>
>> emerge: there are no ebuilds built with USE flags to satisfy 
>> ">=x11-libs/cairo-1.4.6[svg]".
>> !!! One of the following packages is required to complete your request:
>> - x11-libs/cairo-1.8.6-r1 (Change USE: +svg)
>> (dependency required by "net-analyzer/rrdtool-1.3.8" [ebuild])
>> (dependency required by "sys-apps/lm_sensors-2.10.7" [ebuild])
>> (dependency required by "lm_sensors" [argument])
>> ____________________________
>>
>> Now I do not understand it at all. Why rrdtool? All I want
>> to use sensord for is to have some status messages recorded
>> to syslog. Why should I install that x11-libs/cairo graphics
>> library and rrdtool stuff???
> 
> Likely sensord does a lot more than recording to syslog.

man sensord:

DESCRIPTION
Sensord is a daemon that can be used to periodically log
sensor readings from hardware health-monitoring chips to
syslog(3) ***OR*** a round-robin database (RRD) and to alert
when a sensor alarm is signalled; for example, if a fan fails,
a temperature limit is exceeded, etc.

You see that big fat ***OR*** there? syslog or RRD. And I think
even gentoo-user should have the right to choose what he wants
to do with those sensor-readings. Definitelly I'm against any
x11-libs on my server, be it x11-misc/read-edid or x11-libs/cairo.

BTW, sensord can write data to round-robin database even if no
rrd-tool is installed. There's no need to put net-analyzer/rrdtool
as a dependency...

Jarry

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