build fails with gcc 6.2

[avilleret]

I got the following error :

18:47:17: Exécution des étapes pour le projet OSSIA...
18:47:17: Débute : "/usr/bin/cmake" --build . --target all -- -j2
[1/13 0.0/sec] Building CXX object OSSIA/CMakeFiles/ossia.dir/ossia/dataflow/graph.cpp.o
FAILED: OSSIA/CMakeFiles/ossia.dir/ossia/dataflow/graph.cpp.o 
/usr/bin/g++   -DASIO_STANDALONE=1 -DBOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING -DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE -DFMT_HEADER_ONLY=1 -DRAPIDJSON_HAS_STDSTRING=1 -DSERVUS_USE_AVAHI_CLIENT -DTINYSPLINE_DOUBLE_PRECISION -Dossia_EXPORTS -IOSSIA -I/home/antoine/lib-src/OSSIA/i-score/API/OSSIA -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/readerwriterqueue -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/asio/asio/include -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/websocketpp -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/Servus -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/variant/include -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/nano-signal-slot/include -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/spdlog/include -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/brigand/include -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/fmt -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/hopscotch-map/src -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/chobo-shl/include -I/home/antoine/lib-src/OSSIA/i-score/API/3rdparty/GSL/include -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/rapidjson/include -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/ModernMIDI -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/ModernMIDI/third_party -isystem /home/antoine/lib-src/OSSIA/i-score/API/3rdparty/oscpack -I3rdparty/ModernMIDI -std=c++14  -g -fPIC -fvisibility=hidden -fvisibility-inlines-hidden   -std=c++1z -Wall -Wextra -Wno-unused-parameter -Wno-unknown-pragmas -Wno-missing-braces -Wnon-virtual-dtor -pedantic -Wunused -Woverloaded-virtual -pipe -Werror=return-type -Werror=trigraphs -Wmissing-field-initializers -fvar-tracking-assignments -Wa,--compress-debug-sections -Wl,--compress-debug-sections=zlib -Wl,--dynamic-list-cpp-new -Wl,--dynamic-list-cpp-typeinfo -Wmisleading-indentation -Winvalid-pch -include /home/antoine/lib-src/OSSIA/i-score/build-API-Desktop_Qt_5_8_0_GCC_64bit-Debug/OSSIA/cotire/ossia_CXX_prefix.hxx -std=gnu++14 -MMD -MT OSSIA/CMakeFiles/ossia.dir/ossia/dataflow/graph.cpp.o -MF OSSIA/CMakeFiles/ossia.dir/ossia/dataflow/graph.cpp.o.d -o OSSIA/CMakeFiles/ossia.dir/ossia/dataflow/graph.cpp.o -c /home/antoine/lib-src/OSSIA/i-score/API/OSSIA/ossia/dataflow/graph.cpp
/home/antoine/lib-src/OSSIA/i-score/API/OSSIA/ossia/dataflow/graph.cpp: In static member function ‘static void ossia::graph::pull_from_address(ossia::inlet&, ossia::execution_state&)’:
/home/antoine/lib-src/OSSIA/i-score/API/OSSIA/ossia/dataflow/graph.cpp:492:17: warning: unused variable ‘pattern’ [-Wunused-variable]
   else if (auto pattern = in.address.target<std::string>())
                 ^~~~~~~
/home/antoine/lib-src/OSSIA/i-score/API/OSSIA/ossia/dataflow/graph.cpp: In lambda function:
/home/antoine/lib-src/OSSIA/i-score/API/OSSIA/ossia/dataflow/graph.cpp:334:9: internal compiler error: Erreur de segmentation
         init_node(first_node, e);
         ^~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
ninja: build stopped: subcommand failed.
18:47:32: Le processus "/usr/bin/cmake" s'est terminé avec le code 1.
Erreur lors de la compilation/déploiement du projet OSSIA (kit : Desktop Qt 5.8.0 GCC 64bit)
When executing step "Make"

which is really really weird...

Switching to GCC 7.1 works I'm on 612b76d and it used to work few days ago...

[jcelerier]

just pushed a test to fix this on master, could you try ?

[avilleret]

yes ! it builds