Compiling with emscripten fails

[Maddimax]

Compiling with emscripten fails with:

369.4 signals.c:146:4: error: call to undeclared function 'mythread_sigmask'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
369.4   146 |                         mythread_sigmask(SIG_BLOCK, &hooked_signals, NULL);
369.4       |                         ^
369.4 signals.c:146:4: note: did you mean 'pthread_sigmask'?
369.4 /emsdk/upstream/emscripten/cache/sysroot/include/signal.h:230:5: note: 'pthread_sigmask' declared here
369.4   230 | int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict);
369.4       |     ^
369.4 signals.c:163:4: error: call to undeclared function 'mythread_sigmask'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
369.4   163 |                         mythread_sigmask(SIG_UNBLOCK, &hooked_signals, NULL);

mythread_sigmask was disabled here: 81db3b8

Should the calling code get #if-defed out as well for WASM?

[Larhzu]

I don't have much clue here because I know very little about WASM or Emscripten. I pushed a branch "wasm" with a simple commit but it's just a guess. Can you test it? If it builds, it could be fine. Is it still so that there is no "sigprocmask" function? That is, is the old commit to mythread.h still needed?