Switch to make

.ci/travis/linux/docker-build-test.sh

@@ -14,7 +14,6 @@ mkdir -p build-docker &&
 pushd build-docker
 
 cmake \
- -GNinja \
  -DWITH_STAGED_PLUGINS=ON \
  -DWITH_GRASS=OFF \
  -DSUPPRESS_QT_WARNINGS=ON \
@@ -38,8 +37,7 @@ cmake \
 
 export LD_PRELOAD=/lib/x86_64-linux-gnu/libSegFault.so
 
-export CTEST_BUILD_COMMAND=ninja
-export CTEST_BUILD_COMMAND=echo
+export CTEST_BUILD_COMMAND="/usr/bin/make -j3 -i -k"
 
 python3 /root/QGIS/.ci/travis/scripts/ctest2travis.py xvfb-run ctest -V -E "$(cat /root/QGIS/.ci/travis/linux/blacklist.txt | sed -r '/^(#.*?)?$/d' | paste -sd '|' -)" -S /root/QGIS/.ci/travis/travis.ctest --output-on-failure