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.
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