Experimental Physics and
Industrial Control System

Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> · Thu, 20 Aug 2020 20:02:12 +0000

>  The dxp module won’t compile over some problem with finding functions in what appears to be libusb. 

There are 2 usb libraries, libusb-1.0 and the older libusb-0.x. You need the older one installed for dxp.

Mark

Sent from my iPhone

> On Aug 20, 2020, at 12:53 PM, Randall Cayford via Tech-talk <tech-talk at aps.anl.gov> wrote:
> 
> I found the problem.  The defaults for tar on centos 7 and Ubuntu 18 are different.  On centos, untaring synApps assigns the user who untars.  On Ubuntu (at least with the parameters I used) the assigned user appears to be the uid and gid of whoever created it.  I don’t know why compiling as root has a problem with this but the depends.pl script hangs in that case.  chown fixed the problem.
> 
> I have mostly successfully compiled synApps on Ubuntu now.  The dxp module won’t compile over some problem with finding functions in what appears to be libusb.  That one I haven’t solved.
> 
> Thanks.
> 
> Randall
> 
> 
>> On Aug 20, 2020, at 7:39 AM, Engbretson, Mark S. <engbretson at anl.gov> wrote:
>> 
>> On the module that it is stuck on, do a make distclean, and then start a recompile there.  I have seen the same situation where something goes screwy with a time stamp so thinks that something has to be recompiled when it doesn't.
>> 
>> -----Original Message-----
>> From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Michael Davidsaver via Tech-talk
>> Sent: Tuesday, August 18, 2020 8:43 PM
>> To: Randall Cayford <rcayford at lbl.gov>
>> Cc: tech-talk at aps.anl.gov
>> Subject: Re: installing synApps on Ubuntu
>> 
>>> On 8/18/20 2:45 PM, Randall Cayford via Tech-talk wrote:
>>> We must be missing something obvious but synApps won’t install on Ubuntu for us.  The problem step is make release hangs forever.  Some problem with perl but we don’t know what.
>>> 
>>> Steps:
>>> install ubuntu 18 LTS
>>> Install EPICS7
>>> Unzip the synApps (6_1) tar file and edit config files run “make 
>>> release”
>>> Wait forever….
>> 
>> What, if anything, is printed while you are waiting?
>> 
>>> Exact same procedure installs fine on Centos 7.  Since there isn’t a lot of chatter about this, it seems like we’re missing a step somewhere.  Anyone know what we need to do?
>> 
>> I occasionally have builds get stuck in infinite loops, repeating the same set of steps until I interrupt.
>> So far this hasn't happen often or predictably enough to do much troubleshooting.
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System