Prefer `libx.a` over `libx.so` when dynamic linking is off?

[hoodmane]

When using Emscripten 4.0.0 and 4.0.1, I'm getting errors like attempted static link of dynamic object ./libx.so. I haven't diagnosed what changed in Emscripten that causes this, this is a feature request not a report of a regression. The following reproduces the problem:

$ ar -cq libx.a
$ touch a.c
$ emcc a.c -L. -lx
$ echo $?
0
$ touch x.c
$ emcc -sSIDE_MODULE x.c -o libx.so
$ emcc a.c -L. -lx
wasm-ld: error: attempted static link of dynamic object ./libx.so

I would like it if instead of complaining that it can't use libx.so it would find libx.a and link with that.

[sbc100]

I think this was an change in wasm-ld: llvm/llvm-project#108263

I'll see if its reasonable to avoid the error in that case.

[sbc100]

Actually tracked this down a bug in emscripten. Fix on the way.

[hoodmane]

Thanks!