On Fri, Jan 25, 2019 at 1:31 PM Tobias Pape &lt;notifications@github.com&gt;<br>
wrote:<br>
<br>
&gt; Hi.<br>
&gt;<br>
&gt; The problem here is that the sound pluing (vm-sound-pulse) is in fact not<br>
&gt; linked agains the libpulse-simple.so. So says ldd and a quick glance a<br>
&gt; the code does not tell me why tho.<br>
&gt;<br>
&gt; When the sound system is initialized, it apparently tries to dynload the<br>
&gt; vm-sound-pulse but since it has unresolved symbols, that fails.<br>
&gt;<br>
&gt; However, using LD_PRELOAD, we force the libpulse-simple.so into the<br>
&gt; starting process, so that the dynload can actually succeed, as the missing<br>
&gt; symbols can already be found in the process. (LD_PRELOAD is present on al<br>
&gt; ELF-based systems, ie, Linux/BSD, Mach-O based use DYLD_INSERT_LIBRARIES,<br>
&gt; ie macOS).<br>
&gt;<br>
&gt; The proper fix would be to ling vm-sound-pulse with -lpulse-simple<br>
&gt; somehow, but looking at the Make-includes/cmake files, I wonder why that&#39;s<br>
&gt; not the case in the first place.<br>
&gt;<br>
<br>
I suspect the autoconfig step being run on a build machine without lib<br>
pulse correctly installed.  Again that&#39;s an advantage of static makefiles;<br>
if prerequisites are unavailable the build will fail instead of the system<br>
silently (or at least very muffled) deciding not to link against a missing<br>
library.<br>
<br>
<br>
&gt; —<br>
&gt; You are receiving this because you commented.<br>
&gt; Reply to this email directly, view it on GitHub<br>
&gt; &lt;https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/360#issuecomment-457736311&gt;,<br>
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&gt; .<br>
&gt;<br>
<br>
<br>
-- <br>
_,,,^..^,,,_<br>
best, Eliot<br>


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