Cannot use `zig cc` with `--target=wasm32-wasi` and `-D_WASI_EMULATED_SIGNAL`

[karelbilek]

Zig Version

0.15.0-dev.386+2e35fdd03

Steps to Reproduce and Observed Behavior

I might be holding things wrong...

I want to compile C code with zig cc with target=wasm32-wasi and WASI_EMULATED_SIGNAL; I get this error

 /zig/zig cc --target=wasm32-wasi -D_WASI_EMULATED_SIGNAL -I/some_software/out/include -D_WASI_EMULATED_SIGNAL
 -L/ghostscript-build/out/lib -lwasi-emulated-signal conftest.c  >&5
error: sub-compilation of libwasi-emulated-signal.a failed
    note: failed to check cache: '/zig/lib/libc/wasi/libc-top-half/musl/src/signal/psignal.c' file_hash FileNotFound

This is not nice. The file indeed doesn't exist.

I am using -D_WASI_EMULATED_SIGNAL, because without it, I get this error

/zig/lib/libc/include/wasm-wasi-musl/signal.h:2:2: error: "wasm lacks signal support; to enable minimal signal emulation, compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal"

Not sure what to do

Expected Behavior

Everything builds

[karelbilek]

note: I never used zig before, I am trying to use it to build a complex software (ghostscript) into wasi. I have used emscripten successfully, but it is a patched emscripten to support WASI (see patch thread emscripten-core/emscripten#18285 )

[alexrp]

Looks like I missed changing the path for this file in 05d8b56. Will fix shortly and backport to 0.14.1.