[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Problem linking Linux Sound Library (#360)

[Tobias Pape]

> On 27.01.2019, at 14:41, karl ramberg <karlramberg at gmail.com> wrote:
> 
> Sound on Linux seem to be a mess.
> I'm on Ubuntu 18.04 and had no sound from Squeak.
> I got this error in the terminal: dev/dsp: No such file or directory
> I installed package osspd and that seem to solve the problem.
> (sudo apt-get install osspd)

This is the exact problem described.

Please try " export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libpulse-simple.so.0.1.0" (or whereever that file is on your pc, and maybe i386 instead of x86_64 if you're running 32bit)
and tell us if it helps in your case.

best regards
	-Tobias

> 
> Best,
> Karl
> 
> 
> On Sat, Jan 26, 2019 at 12:18 AM Tobias Pape <notifications at github.com> wrote:
>  
> > On 25.01.2019, at 23:32, Eliot Miranda <notifications at github.com> wrote:
> > 
> > Hi Tobias,
> > 
> > On Fri, Jan 25, 2019 at 2:27 PM Tobias Pape <notifications at github.com>
> > wrote:
> > 
> > > That's besides the point here.
> > >
> > > The plugin would not have been built if the library was not present.
> > > That's what the configure step is for.
> > > The VM is origrinally from a travis and I made sure the lib is there:
> > > https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/scripts/ci/travis_install.sh#L15
> > > (thats the dev lib that depends on the real one:
> > > https://packages.ubuntu.com/xenial/libpulse-dev)
> > >
> > 
> > So how come it isn't linked against libpulse-simple.so ?
> 
> I have not the slightest idea and, atm, no linux at hand.
> We (ie, maybe, @ekrebs5 or @fniephaus) have to look wether this stems from here or https://github.com/squeak-smalltalk/squeak-app .
> On macOS we have rpath issues that can come out like this and might be sensitive to be moved around…
> 
> Here we see that the lib is added in configure:
> https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/jobs/483526374#L1071
> 
> And here we see that the squeak _binary_ is actually linked agains libpulse-simple:
> 
> https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/jobs/483526374#L3455
> 
> That is ok, since the dynloaded vm-sound-pulse can lookup in its loading process, which (being squeak being linked against libpulse-simple) should have the syms.
> 
> Accordingly we see the plugin not begin linked against the lib:
> https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/jobs/483526374#L4111
> 
> The rest is libtool chitter-chat that i cannot understand so quick…
> 
> > 
> > > All of the respecitve sound plugins are optional, and absence is expected.
> > >
> > 
> > Not for a build slave, surely. Shouldn't;t the build slave build all
> > possible variants? If we're providing prebuilt VMs (for good reason) then
> > we have to build what we support. Things like vm-display-fbdev may be
> > something we can not support and leave to individuals to build if they want
> > to. But vm-sound-pulse is not in that category.
> 
> Did not say that. all the vm-*-* plugins seem to care for optionality. and IIRC it is nigh impossible to build for some combinations to be built with the same package set (NAS + OSS or some OSS/ALSA combos, but my memory is foggy there).
> 
> In fact, I tried to make sure as many as possible plugins to be buildable on Travis: 
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/698661a94af388b06b98b11d9d2a4216b36acdb5#diff-852da479861e8f719725fb8018cc1699R5
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/989f7e06d041c145863dd2d648e196a3169947d4#diff-eaec0bdb68c02946e8335228ebbbbad9
> 
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/75f59c456f79fb4f7ca64bc1d2504d3f9626e305
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/ca75c6bfd0903f25917b8b88aca63e574dd39a1f
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/a82b9cfdcf2f8d5396fa2f6950a06f35c374098d
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/3a8a3c4bb7033c0e19c714ca4d90b0cc8f9f2565
> 
> Point is: yes, I really tried to make sure the build slave builds everything necessary.
> 
> 
> -t
> 
> 
> > 
> > _,,,^..^,,,_
> > best, Eliot
> > —
> > You are receiving this because you were mentioned.
> > Reply to this email directly, view it on GitHub, or mute the thread.
> > 
> 
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