Undefined Reference to GLIB about fields2cover HOT 2 OPEN

The GLIBC error is probably caused by using a binary release of ortools (-DUSE_ORTOOLS_RELEASE=ON) on a system that is not compatiable with it. Ubuntu 20.04 has glibc 2.31

I was going to say try

mkdir -p build;
cd build;
cmake -DCMAKE_BUILD_TYPE=Release -DUSE_ORTOOLS_RELEASE=OFF -DUSE_ORTOOLS_FETCH_SRC=ON -DCMAKE_BUILD_TYPE=Release -DBUILD_PYTHON=ON -DBUILD_TESTS=ON ..;
make -j$(nproc)

Which builds ortools from source but I just did it and got
'''
CMake Error at CMakeLists.txt:361 (add_custom_target):
add_custom_target cannot create target "check" because another target with
the same name already exists. The existing target is an interface library
created in source directory
"/home/wakem/dev/contrib_github/n2/src/Fields2Cover/build/_deps/abseil-cpp-src/absl/log".
See documentation for policy CMP0002 for more details.
'''

Which is a conflict in target names. #161

from fields2cover.

Hi @nilleko, I believe the problem is that F2C is having issues detecting the correct ortools, which have at least 2 versions in your system.
On one hand, you have installed the ortools release in your system. On the other hand, fields2cover downloaded ortools and try to link to it (/home/niclas/Fields2Cover/build/_deps/ortools-src/lib/libortools.so.9).

Can you try again (#162 is a possible fix)

from fields2cover.