Files
dependencies/zstd/build.sh
Adeeb Shihadeh b9f89a5a5d disable LTO for zstd to fix cross-version linking on macOS
LTO bitcode is compiler-version-specific. The wheel built with
clang 17 produces bitcode that clang 16 (used in openpilot CI)
cannot read. Disable IPO to produce standard object files.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-23 22:46:55 -08:00

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#!/usr/bin/env bash
set -e
DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
cd "$DIR"
VERSION="1.5.6"
INSTALL_DIR="$DIR/zstd/install"
# Idempotent: skip if already built
if [ -f "$INSTALL_DIR/lib/libzstd.a" ]; then
echo "zstd already present, skipping build."
exit 0
fi
NJOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 2)"
# Clone
if [ ! -d "zstd-src" ]; then
git clone --depth 1 --branch "v${VERSION}" https://github.com/facebook/zstd.git zstd-src
fi
# Build
PREFIX="$DIR/build/prefix"
mkdir -p "$DIR/build"
cmake -S zstd-src/build/cmake -B "$DIR/build" \
-DCMAKE_BUILD_TYPE=MinSizeRel \
-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=OFF \
-DCMAKE_INSTALL_PREFIX="$PREFIX" \
-DCMAKE_INSTALL_LIBDIR=lib \
-DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
-DZSTD_BUILD_PROGRAMS=OFF \
-DZSTD_BUILD_TESTS=OFF \
-DZSTD_BUILD_CONTRIB=OFF \
-DZSTD_BUILD_SHARED=OFF \
-DZSTD_BUILD_STATIC=ON
cmake --build "$DIR/build" -j"$NJOBS"
cmake --install "$DIR/build"
# Copy to package install dir
rm -rf "$INSTALL_DIR"
mkdir -p "$INSTALL_DIR"/{lib,include}
# Library
cp "$PREFIX/lib/libzstd.a" "$INSTALL_DIR/lib/"
# Headers
cp "$PREFIX/include/zstd.h" "$INSTALL_DIR/include/"
cp "$PREFIX/include/zstd_errors.h" "$INSTALL_DIR/include/"
cp "$PREFIX/include/zdict.h" "$INSTALL_DIR/include/"
# Clean up
rm -rf zstd-src "$DIR/build"
echo "Installed zstd to $INSTALL_DIR"
du -sh "$INSTALL_DIR"