Fails on i386: non-constant-expression cannot be narrowed from type 'unsigned int' to 'npy_intp' (aka 'int') in initializer list

[yurivict]

2021.09.4 fails:

/wrkdirs/usr/ports/science/rdkit/work/rdkit-Release_2021_09_4/Code/GraphMol/Fingerprints/Wrap/FingerprintGeneratorWrapper.cpp:237:23: error: non-constant-expression cannot be narrowed from type 'unsigned int' to 'npy_intp' (aka 'int') in initializer list [-Wc++11-narrowing]
  npy_intp size[1] = {fp->size()};
                      ^~~~~~~~~~

FreeBSD 13

[greglandrum]

This is clearly something that should be fixed, but I believe that it's only an error in C++17 and later. The RDKit is using C++14, so this hasn't come up.