Does #if ASYNCIFY work in user code?

[iliakan]

Is it possible to detect if ASYNCIFY is enabled in C code compiled with Emscripten?

This doesn't work:

#if ASYNCIFY
...
#endif

[sbc100]

It will work in JS library files, but not in C/C++ files (this is the same for all the emscripten settings BTW).

Further more -sASYNCIFY is a link-time option so it not known at compile time, if you want to have a compile flag you would just add your own -DASYNCIFY

[kripken]

See also emscripten_has_asyncify for runtime detection.