MacOS Install instructions don't work

Please include the following in your bug report:

**Version of emscripten/emsdk:**
Can't run emcc so can't give you this

Following the instuctions from https://emscripten.org/docs/getting_started/downloads.html on MacOS does not work. THere's no errors or anything but there's no emcc anywhere. This is my history

513 git clone https://github.com/emscripten-core/emsdk.git
514 cd emsdk
515 ./emsdk install latest
516 ./emsdk activate latest
517 source ./emsdk_env.sh
518 ./emcc -v

last one says -bash: ./emcc: No such file or directory

There is no emcc file anywhere on my hard drive.

I have latest XCode and Python etc.