FWIIW I wrote the original version of this. Never tried to build FLANN on windows (I've never run J on windows), so no idea what it does there.
I haven't touched it in a long time, but I confirm there is something wrong with it on my laptop/flann1.9/ubuntu 18.04 LTS and J901. Either something in the flann API changed, or something changed in J. FWIIW I am actually unable to find the webpage of the libflann author, and it's quite likely this has been obsoleted by a later metric space package. It's been a while since I needed one of these, there has been a lot of progress in recent using locality hashing, product quantization and so on. Have a look at FALCONN, faiss, fast-lopq and nmslib if you need one of these. Or just good old libANN by Mount and Arya. Anyway it should probably be removed. Sorry. -SL ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
