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build(linux): default ggml CPU features to a portable build #2

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21 changes: 21 additions & 0 deletions packaging/build_linux.sh
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Expand Up @@ -67,6 +67,27 @@ rm -rf "$GUI/src-tauri/binaries/sidecar" "$GUI/src-tauri/binaries/openworker-ser
cp -RL "$HERE/dist/openworker-server" "$GUI/src-tauri/binaries/sidecar"
chmod +x "$GUI/src-tauri/binaries/sidecar/openworker-server"

# whisper.cpp (via whisper-rs-sys) compiles its CPU backend during the Rust build below, and
# ggml's default is to tune for the *build host*. That is wrong for a distributable bundle in two
# ways. First, a host-tuned artifact can die with SIGILL on an older user CPU. Second, the feature
# probe trusts flags independently: a clean Ubuntu 24.04 VM here advertised `avx2` but not `fma`,
# ggml enabled its AVX2 path anyway, and the build failed outright on an FMA intrinsic:
# error: inlining failed in call to 'always_inline' '_mm256_fmadd_ps': target specific option mismatch
# Default every feature OFF so the shipped binary runs anywhere; builders who want a host-optimised
# local package can still override any of these from the environment.
export GGML_NATIVE="${GGML_NATIVE:-OFF}"
export GGML_AVX="${GGML_AVX:-OFF}"
export GGML_AVX2="${GGML_AVX2:-OFF}"
export GGML_AVX_VNNI="${GGML_AVX_VNNI:-OFF}"
export GGML_AVX512="${GGML_AVX512:-OFF}"
export GGML_AVX512_VBMI="${GGML_AVX512_VBMI:-OFF}"
export GGML_AVX512_VNNI="${GGML_AVX512_VNNI:-OFF}"
export GGML_AVX512_BF16="${GGML_AVX512_BF16:-OFF}"
export GGML_BMI2="${GGML_BMI2:-OFF}"
export GGML_F16C="${GGML_F16C:-OFF}"
export GGML_FMA="${GGML_FMA:-OFF}"
export GGML_SSE42="${GGML_SSE42:-OFF}"

echo "==> [3/3] tauri build (--bundles $BUNDLES)"
# Auto-update artifacts (.deb/.AppImage + minisign .sig): produced only when the updater
# signing key is available — from the env (CI secret TAURI_SIGNING_PRIVATE_KEY), or from
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