By default, a pre-build faiss library will be downloaded from the LKEB artifactory during cmake's configuration step.
This might not work for all local setups.
On Linux you'll probably need to add a certificate for this to work: sudo ./cmake/install-lkeb-artifactory-cert.sh.
You can also install faiss with vcpkg and use -DCMAKE_TOOLCHAIN_FILE="[YOURPATHTO]/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows-static-md" to point to your vcpkg installation:
./vcpkg install faiss:x64-windows-static-mdDepending on your OS the VCPKG_TARGET_TRIPLET might vary, e.g. for linux you probably don't need to specify any since it automatically builds static libraries.