On Thursday 14 November 2013 07:39:25 Erik Christiansen did opine:
> On 13.11.13 15:59, Gene Heskett wrote:
> > I have added /usr/lib/camunits to one of the files in
> > /etc/ld.so.conf.d, and have verified that path is correct, but I
> > don't seem to be able to make a "sudo ldconfig -v|less" show me that
> > it is seeing a single one of the dozen plus .so files there. I was
> > under the impression all we ever had to give it was the top level of
> > a tree it (ldconfig) was supposed to process.
>
> Gene, what you should specify (AIUI) is the actual directory containing
> the .so, as shown by a comparison with e.g.
>
> $ more /etc/ld.so.conf.d/libasound2.conf
> /usr/lib/alsa-lib
>
> $ ls /usr/lib/alsa-lib
> libasound_module_conf_pulse.so libasound_module_ctl_arcam_av.so
> ...
>
> If that's analogous to what you have, then have you tried:
>
> $ ldconfig -p | grep <camunits_or_whatever_the_lib_is_called>
>
> With -p it lists candidate libraries stored in the current cache.
> (Reams of 'em.)
>
> Once that picks it up, you're in with a chance.
>
> Silly question time: the .so was in /usr/lib/camunits, when ldconfig -v
> was run? (Just checkin ;)
>
> If that doesn't do it, and you're (fed up and) not stopping to chase the
> showstopper down all its burrows, then the following has worked for me
> for a quick result. For the Bitscope I'd put the required library in
> /usr/lib/bitscope, and even this result:
>
> $ ldconfig -p | grep libborqt
> libborqt-6.9.0-qt2.3.so (libc6) =>
> /usr/lib/bitscope/libborqt-6.9.0-qt2.3.so
>
> wasn't enough for the .so to be found, so I just banged this onto the
> command line:
>
> $ export LD_LIBRARY_PATH=/usr/lib/bitscope:$LD_LIBRARY_PATH
>
> Then the executable happily found the .so more or less "manually".
>
> > Perhaps I'm running it wrong?
>
> Yup. The secret is to run it less wrong, till it works well enough for
> now, as far as I can tell.
>
> Erik
These machines did not have an LD_LIBRARY_PATH defined or exported, so I
set up just these two:
gene@shop:~/linuxcnc$ echo $LD_LIBRARY_PATH
/usr/lib/camunits:/usr/local/lib/camunits
Which obviously is not enough as I get the impression it isn't finding
libv4lconvert, or at least the wrong one since there are at least 2
versions extant. Or are there, locate only finds one.
I think, now that the build deps have been used, I'll have to go back and
reinstall a bunch of mesa stuff that opengl pulls out as I can see
something for video, but only the mesa versions seem to recognize and
actually synch to the formats. According to apt-get:
gene@shop:~/linuxcnc$ sudo apt-get install libgl1-mesa-swx11 libgl1-mesa-
swx11-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
libgl1-mesa-dev libgl1-mesa-glx
The following NEW packages will be installed:
libgl1-mesa-swx11 libgl1-mesa-swx11-dev
0 upgraded, 2 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B/1,658kB of archives.
After this operation, 5,632kB of additional disk space will be used.
Do you want to continue [Y/n]?
Now after removing
The following packages will be REMOVED:
libgl1-mesa-dev libgl1-mesa-glx
The following NEW packages will be installed:
libgl1-mesa-swx11 libgl1-mesa-swx11-dev
The camera again works well in camview. but not in linuxcnc, white screen
in linuxcnc. And leaves this error trace:
Traceback (most recent call last):
File "/usr/bin/camview-emc", line 291, in <module>
view = EmcView(options)
File "/usr/bin/camview-emc", line 84, in __init__
w.load_from_str(open(options.chain).read())
RuntimeError: Unable to instantiate [emc.halio]
But halio.so is there. camview seems to have all working controls, (using
the exact same camviewcfg) linuxcnc doesn't even draw the initial control
buttons. There is a clue there I'm sure. ENOTENOUGHCOFFEE maybe?
Linuxcnc draws the align button on the right screen but plain white, no
buttons in the backplot window, and both fuss about emc-halio.
But I've not even had my morning coffee yet.
Thanks Eric
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Love is staying up all night with a sick child, or a healthy adult.
A pen in the hand of this president is far more
dangerous than 200 million guns in the hands of
law-abiding citizens.
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