I am trying build extensions but doesn't seem to work.

$ make externals
Scanning dependencies of target externals
Built target externals

And then it exits.

$ ls -al external/
total 8
drwxr-xr-x   5 p0n002h  staff   160 Feb 15 17:48 .
drwxr-xr-x  42 p0n002h  staff  1344 Feb 15 17:41 ..
-rw-r--r--   1 p0n002h  staff  2842 Feb 15 16:01 CMakeLists.txt
drwxr-xr-x   3 p0n002h  staff    96 Feb 15 16:01 cmake
lrwxr-xr-x   1 p0n002h  staff    37 Feb 15 17:48 extension_trailofbits -> /Users/p0n002h/git/osquery-extensions

I have the externals directory setup as https://github.com/trailofbits/osquery-extensions. Any help.. Same with the example extension too, I am not able to see the table in osqueryi