<div dir="ltr">Hi,<div><br></div><div>This is a linking problem on your system, not a compilation one.</div><div><br></div><div>This can be typically :</div><div><br></div><div>1/ a cmake cache to cleanup before to compile.</div><div>2/ a wrong linker configuration done by OpenCV install.</div><div><br></div><div>There is nothing special to tune in digiKam here...</div><div><br></div><div>Gilles Caulier</div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-03-11 11:29 GMT+01:00 Jürgen Blumenschein <span dir="ltr"><<a href="mailto:blumenschein@dokom.net" target="_blank">blumenschein@dokom.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">After upgrading to opencv 3.4.1-1 I've got the error message<br>
<br>
symbol lookup error: /usr/lib/libopencv_core.so.3.4<wbr>: undefined symbol: _ZN3tbb10interface78internal15<wbr>task_arena_base24internal_max_<wbr>concurrencyEPKNS0_10task_arena<wbr>E<br>
<br>
downgrading to opencv 3.4.0-2 solved the problem (archlinux)<span class="HOEnZb"><font color="#888888"><br>
<br>
Jürgen<br>
<br>
-- <br>
Jürgen Blumenschein, eMail: <a href="mailto:blumenschein@dokom.net" target="_blank">blumenschein@dokom.net</a><br>
Homepage: <a href="http://members.dokom.net/blumenschein" rel="noreferrer" target="_blank">http://members.dokom.net/blume<wbr>nschein</a><br>
Am Quartus 17<br>
D-44149 Dortmund<br>
Tel.: <a href="tel:%2B49%20231%207217321" value="+492317217321" target="_blank">+49 231 7217321</a>, Handy: <a href="tel:%2B49%20176%205591%204562" value="+4917655914562" target="_blank">+49 176 5591 4562</a><br>
public key: <a href="http://members.dokom.net/blumenscheinJuergen_Blumenschein_(0xC9358EBB)_public_key.asc" rel="noreferrer" target="_blank">http://members.dokom.net/blume<wbr>nscheinJuergen_Blumenschein_(<wbr>0xC9358EBB)_public_key.asc</a><br>
<br>
</font></span></blockquote></div><br></div>