I’ve just spent four hours trying to install Emscripten; firstly under Windows, and then under Linux.
I failed. Miserably.
From my experience, I’d say that the installation instructions are currently (a) fragmented, (b) out of date, (c) inconsistent, and (d) just plain wrong. Very frustrating. It’s a long time since I’ve been presented with so many absolutely inscrutable error messages in a row, and it’s going to take a large effort of will to put myself back through that again.
Also, my opinion is that fastcomp should never have stayed in a side-branch for so long. It’s crushingly obvious that fastcomp is an absolutely necessary part of the whole mix, and so the current instructions for merging the side-branch tools into a working build are just maddening and dis-spiriting for someone coming in from cold.
Emscripten people: you have a thing of wonder and usefulness, yet your getting-started documentation can only be alienating developers such as myself from getting involved. Please turn this around, and put step-by-step Linux installation instructions for 3.4.1 and/or 3.5 on the web somewhere that actually work.
What is so unreasonable about that? *sigh*