I'm guessing the presence or absesne of
this one depends on optimisation descisions by the compiler and/or the
version of libstdc++
[changes introduced in 1.12.1+dfsg-2+rpi1 by Peter Michael Green]
* Disable testsuite.
- -- Raspbian forward porter <root@raspbian.org> Sun, 16 Dec 2018 12:54:39 +0000
+ [changes introduced in 1.12.2+dfsg-1+rpi1 by Peter Michael Green]
+ * Mark another symbol as optional. I'm guessing the presence or absesne of
+ this one depends on optimisation descisions by the compiler and/or the
+ version of libstdc++
+
+ -- Peter Michael Green <plugwash@raspbian.org> Sun, 16 Dec 2018 12:54:39 +0000
qbs (1.12.2+dfsg-1) unstable; urgency=medium
(optional=templinst)_ZZNKSt8__detail11_AnyMatcherINSt7__cxx1112regex_traitsIcEELb0ELb1ELb1EEclEcE5__nul@Base 1.10.0
(optional=templinst)_ZZNKSt8__detail9_ExecutorIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS5_9sub_matchISB_EEENS5_12regex_traitsIcEELb0EE10_M_is_wordEcE3__s@Base 1.10.0
(optional=templinst)_ZZNKSt8__detail9_ExecutorIN9__gnu_cxx17__normal_iteratorIPKcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEESaINS5_9sub_matchISB_EEENS5_12regex_traitsIcEELb1EE10_M_is_wordEcE3__s@Base 1.10.0
- _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag@Base 1.12.2
+ (optional=disappeardinraspbian)_ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag@Base 1.12.2
(c++)"non-virtual thunk to qbs::Internal::Artifact::accept(qbs::Internal::BuildGraphVisitor*)@Base" 1.10.0
(c++)"non-virtual thunk to qbs::Internal::Artifact::load(qbs::Internal::PersistentPool&)@Base" 1.10.0
(c++)"non-virtual thunk to qbs::Internal::Artifact::onChildDisconnected(qbs::Internal::BuildGraphNode*)@Base" 1.10.0