build error on Ubuntu 18.04 with Boost v1.65.1

[zweistein]

Hi, I try to build the package on Ubuntu 18:04 with ROS Melodic and Boost 1.65.1.
I ran into a problem with cv_mat.cpp due to a change in the boos library as boost::python::numeric is depricated in boost >1.63

[ 89%] Building CXX object cells/cv_bp/opencv/CMakeFiles/opencv_boost_python.dir/cv_mat.cpp.o
[ 93%] Built target opencv_test_ectomodule
cd /home/elod/work/ws_robfun/build/ecto_opencv/cells/cv_bp/opencv && /usr/bin/c++  -DROS_BUILD_SHARED_LIBS=1 -Dopencv_boost_python_EXPORTS -I/home/elod/work/ws_robfun/devel/.private/ecto/include -isystem /usr/local/include -isystem /usr/local/include/opencv -isystem /home/elod/work/ws_robfun/src/ecto/include -isystem /home/elod/work/ws_robfun/src/opencv_candidate/include -isystem /home/elod/anaconda3/envs/ros/include/python2.7 -I/usr/include/python2.7 -I/usr/lib/python2.7/dist-packages/numpy/core/include  -fPIC   -o CMakeFiles/opencv_boost_python.dir/cv_mat.cpp.o -c /home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp
In file included from /usr/include/python2.7/numpy/ndarraytypes.h:1809:0,
                 from /usr/include/python2.7/numpy/ndarrayobject.h:18,
                 from /usr/include/python2.7/numpy/arrayobject.h:4,
                 from /home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp:3:
/usr/include/python2.7/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
 #warning "Using deprecated NumPy API, disable it by " \
  ^~~~~~~
/home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp:13:31: error: ‘numpy’ is not a namespace-name
 namespace np = boost::python::numpy;

Based on similar issues I tried to change the namespace from namespace bp::numeric:: to namespace bp::numpy:: but this fails too:

[ 78%] Building CXX object cells/cv_bp/opencv/CMakeFiles/opencv_boost_python.dir/cv_mat.cpp.o
cd /home/elod/work/ws_robfun/build/ecto_opencv/cells/cv_bp/opencv && /usr/bin/c++  -DROS_BUILD_SHARED_LIBS=1 -Dopencv_boost_python_EXPORTS -I/home/elod/work/ws_robfun/devel/.private/ecto/include -isystem /usr/local/include -isystem /usr/local/include/opencv -isystem /home/elod/work/ws_robfun/src/ecto/include -isystem /home/elod/work/ws_robfun/src/opencv_candidate/include -isystem /home/elod/anaconda3/envs/ros/include/python2.7 -I/usr/include/python2.7 -I/usr/lib/python2.7/dist-packages/numpy/core/include  -fPIC   -o CMakeFiles/opencv_boost_python.dir/cv_mat.cpp.o -c /home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp
make[2]: Entering directory '/home/elod/work/ws_robfun/build/ecto_opencv'
make[2]: Nothing to be done for 'cells/opencv/rgbd/CMakeFiles/rgbd_ectomodule.dir/build'.
make[2]: Leaving directory '/home/elod/work/ws_robfun/build/ecto_opencv'
[ 82%] Built target opencv_test_ectomodule
[ 93%] Built target rgbd_ectomodule
In file included from /usr/include/python2.7/numpy/ndarraytypes.h:1809:0,
                 from /usr/include/python2.7/numpy/ndarrayobject.h:18,
                 from /usr/include/python2.7/numpy/arrayobject.h:4,
                 from /home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp:3:
/usr/include/python2.7/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
 #warning "Using deprecated NumPy API, disable it by " \
  ^~~~~~~
/home/elod/work/ws_robfun/src/ecto_opencv/cells/cv_bp/opencv/cv_mat.cpp:87:16: error: ‘array’ in namespace ‘boost::python::numpy’ does not name a type
     bp::numpy::array
                ^~~~~

Any ideas on how to fix this issue?

[tripulse]

bro what's Ubnut

[HassanHariri]

Having same issue. Did you manage to find a solution?

[zweistein]

Yes, my pull request solves it: #37