On 10/11/19 9:25 AM, jr wrote:
> hi,
> 
> Dick Balaska <dic### [at] buckosoftcom> wrote:
>> On 10/11/19 7:22 AM, jr wrote:
>>> Dick Balaska <dic### [at] buckosoftcom> wrote:
>>>> ...
>>>> For me, on debian/ubuntu/mint, povray/qtpovray ends up at
>>>> /usr/share/povray-3.7
>>>> /usr/share/qtpovray-3.8
>>> weird.  neither is "system" software, so should go under '/usr/local' (or
>>> '/opt'), aiui.
>>
>> /usr/share: Architecture-independent (shared) data.
>> https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard
> 
> thanks.  could have sworn there's a section 7 man page too, but cannot find it
> now.  :-(
> 
>> I have 351 directories of foo under /usr/share
>> /usr/local is for stuff I build myself.  I didn't, I installed the
>> "official" debian package.
>>
>> /opt is for optional.   Good for whole self contained self-downloaded
>> packages.  Like /opt/eclipse and /opt/Qt.
> 
> still, strange choice.  conflict between build system and packaging tool?  in my
> (nvh) opinion, the packages should install under '/usr/local', and the
> "architecture independent" stuff under '/usr/local/share'.
> 
> wrt '/opt', _if_ POV-Ray installed as '/opt/povray/{bin,etc,share}', I'd be ok
> with that too.
> 
> if you create your own (qtpovray) package, does that differ from the official
> package?  (blame the maintainer!  ;-))
> 
>> I'm curious, on your slackware system, where do your *.vim files live?
>> (like filetype.vim)  The povray %INSTALLDIR% is a cousin of that.
> 
> '/usr/share/vim'.  however, the editor is (of course) part of the system s/ware.
> 
> regards, jr.
> 

With respect to /opt/<package>, on my Ubuntu system at the moment I have 
the /opt mount point, but nothing there. When you install something like 
/opt/eclipse, does that install update PATH and so on for everyone on 
the system?

The user PATH is set up already with /usr/bin and /usr/local/bin so an 
executable placed in either of those directories naturally gets picked up.

With respect to the povray etc directory, I think builds are hard coded 
to look for it and those two files, but uncertain of details. If 
correct, it means any change will be more than just deleting that 
povray.conf line. We'd need to find another home for those /etc files.

I'm not very familiar with the package build process, but for my 
/usr/local installs the necessary /etc directory was created - povray 
stuff 3.7 and 3.8 versions is all that's there. Does this sort of 
directory creation not happen on /usr/share distribution package installs?

Is perhaps <>/etc out of favor as a directory these days?

Bill P.

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