Added cxx17 flags to master build.

diff --git a/contrib/docker/Dockerfile b/contrib/docker/Dockerfile
index 3e8797921991972872a48cf5546b9c90f2a768ff..1a7ec1d7ab5f16fa5c52c9e1e41c2309559ca29a 100644 (file)
--- a/contrib/docker/Dockerfile
+++ b/contrib/docker/Dockerfile
@@ -12,6 +12,7 @@ RUN cd /usr/src \
     -DDEAL_II_COMPONENT_PYTHON_BINDINGS=ON \
     -DDEAL_II_WITH_MPI=ON \
     -DDEAL_II_WITH_SIMPLEX_SUPPORT=ON \
+    -DCMAKE_CXX_FLAGS="-std=c++17" \
     .. \  
     && ninja install \
     && cd ../ && rm -rf .git build