RUN git clone --depth=1 git://git.savannah.gnu.org/mediagoblin.git -b master .
RUN ./bootstrap.sh
-RUN VIRTUALENV_FLAGS='--system-site-packages' ./configure --with-python3
+RUN VIRTUALENV_FLAGS='--system-site-packages' ./configure
RUN make
# RUN echo '[[mediagoblin.media_types.audio]]' >> mediagoblin.ini