Files
ObsidianDragon/scripts/fetch-libsodium.sh
DanS 97bd2f8168 build: macOS universal binary (arm64+x86_64) with deployment target 11.0
- Set CMAKE_OSX_DEPLOYMENT_TARGET and CMAKE_OSX_ARCHITECTURES before
  project() so they propagate to all FetchContent dependencies (SDL3, etc.)
- build.sh: native mac release builds universal binary, detects and
  rebuilds single-arch libsodium, verifies with lipo, exports
  MACOSX_DEPLOYMENT_TARGET; dev build uses correct build/mac directory
- fetch-libsodium.sh: build arm64 and x86_64 separately then merge with
  lipo on native macOS; fix sha256sum unavailable on macOS (use shasum)
2026-04-03 10:55:07 -05:00

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#!/usr/bin/env bash
# ── scripts/fetch-libsodium.sh ──────────────────────────────────────────────
# Download and build libsodium from source for the target platform.
# Called automatically by CMake when the pre-built library is not found,
# or manually before building:
#
# ./scripts/fetch-libsodium.sh # native (Linux/macOS)
# ./scripts/fetch-libsodium.sh --mac # macOS cross-compile via osxcross
# ./scripts/fetch-libsodium.sh --win # Windows cross-compile via MinGW
#
# Output: libs/libsodium/ (include/ + lib/libsodium.a)
# ─────────────────────────────────────────────────────────────────────────────
set -euo pipefail
SODIUM_VERSION="1.0.18"
SODIUM_SHA256="6f504490b342a4f8a4c4a02fc9b866cbef8622d5df4e5452b46be121e46636c1"
SODIUM_URL="https://github.com/jedisct1/libsodium/releases/download/1.0.18-RELEASE/libsodium-${SODIUM_VERSION}.tar.gz"
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
TARGET="native"
while [[ $# -gt 0 ]]; do
case $1 in
--mac) TARGET="mac"; shift ;;
--win) TARGET="win"; shift ;;
*) echo "Unknown option: $1"; exit 1 ;;
esac
done
# ── Output directories ──────────────────────────────────────────────────────
case "$TARGET" in
mac) INSTALL_DIR="$PROJECT_DIR/libs/libsodium-mac" ;;
win) INSTALL_DIR="$PROJECT_DIR/libs/libsodium-win" ;;
*) INSTALL_DIR="$PROJECT_DIR/libs/libsodium" ;;
esac
# Skip if already built
if [[ -f "$INSTALL_DIR/lib/libsodium.a" ]]; then
echo "[fetch-libsodium] Already present: $INSTALL_DIR/lib/libsodium.a"
exit 0
fi
# ── Download ────────────────────────────────────────────────────────────────
TARBALL="$PROJECT_DIR/libs/libsodium-${SODIUM_VERSION}.tar.gz"
SRC_DIR="$PROJECT_DIR/libs/libsodium-${SODIUM_VERSION}"
if [[ ! -f "$TARBALL" ]]; then
echo "[fetch-libsodium] Downloading libsodium ${SODIUM_VERSION}..."
curl -fSL -o "$TARBALL" "$SODIUM_URL"
fi
# Verify checksum (sha256sum on Linux, shasum on macOS)
if command -v sha256sum &>/dev/null; then
echo "$SODIUM_SHA256 $TARBALL" | sha256sum -c - || {
echo "[fetch-libsodium] ERROR: SHA256 mismatch! Removing corrupted download."
rm -f "$TARBALL"
exit 1
}
elif command -v shasum &>/dev/null; then
echo "$SODIUM_SHA256 $TARBALL" | shasum -a 256 -c - || {
echo "[fetch-libsodium] ERROR: SHA256 mismatch! Removing corrupted download."
rm -f "$TARBALL"
exit 1
}
fi
# ── Extract ─────────────────────────────────────────────────────────────────
if [[ ! -d "$SRC_DIR" ]]; then
echo "[fetch-libsodium] Extracting..."
tar -xzf "$TARBALL" -C "$PROJECT_DIR/libs/"
fi
# ── Configure & build ───────────────────────────────────────────────────────
cd "$SRC_DIR"
CONFIGURE_ARGS=(
--prefix="$INSTALL_DIR"
--disable-shared
--enable-static
--with-pic
)
case "$TARGET" in
mac)
# Cross-compile for macOS via osxcross
if [[ -z "${OSXCROSS:-}" ]]; then
for try in "$PROJECT_DIR/external/osxcross" "$HOME/osxcross" "/opt/osxcross" "$PROJECT_DIR/osxcross"; do
[[ -d "$try/target" ]] && OSXCROSS="$try" && break
done
fi
if [[ -z "${OSXCROSS:-}" ]]; then
echo "[fetch-libsodium] ERROR: osxcross not found. Set OSXCROSS=/path/to/osxcross"
exit 1
fi
export PATH="$OSXCROSS/target/bin:$PATH"
# Detect osxcross triple
TRIPLE=$(ls "$OSXCROSS/target/bin/" | grep -o 'x86_64-apple-darwin[0-9]*' | head -1)
[[ -z "$TRIPLE" ]] && TRIPLE="x86_64-apple-darwin22"
CONFIGURE_ARGS+=(--host="$TRIPLE")
export CC="${TRIPLE}-cc"
export CXX="${TRIPLE}-c++"
export AR="${TRIPLE}-ar"
export RANLIB="${TRIPLE}-ranlib"
;;
win)
# Cross-compile for Windows via MinGW
CONFIGURE_ARGS+=(--host=x86_64-w64-mingw32)
# Prefer the posix-thread variant if available
if command -v x86_64-w64-mingw32-gcc-posix &>/dev/null; then
export CC=x86_64-w64-mingw32-gcc-posix
export CXX=x86_64-w64-mingw32-g++-posix
else
export CC=x86_64-w64-mingw32-gcc
export CXX=x86_64-w64-mingw32-g++
fi
export AR=x86_64-w64-mingw32-ar
export RANLIB=x86_64-w64-mingw32-ranlib
# Disable _FORTIFY_SOURCE — MinGW doesn't provide __memcpy_chk etc.
export CFLAGS="${CFLAGS:-} -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0"
;;
esac
# ── Native macOS: build universal binary (arm64 + x86_64) ───────────────────
IS_MACOS_NATIVE=false
if [[ "$TARGET" == "native" && "$(uname -s)" == "Darwin" ]]; then
IS_MACOS_NATIVE=true
fi
if $IS_MACOS_NATIVE; then
echo "[fetch-libsodium] Building universal (arm64 + x86_64) for macOS..."
export MACOSX_DEPLOYMENT_TARGET="11.0"
INSTALL_ARM64="$PROJECT_DIR/libs/libsodium-arm64"
INSTALL_X86_64="$PROJECT_DIR/libs/libsodium-x86_64"
for ARCH in arm64 x86_64; do
echo "[fetch-libsodium] Building for $ARCH..."
cd "$SRC_DIR"
make clean 2>/dev/null || true
make distclean 2>/dev/null || true
if [[ "$ARCH" == "arm64" ]]; then
ARCH_INSTALL="$INSTALL_ARM64"
HOST_TRIPLE="aarch64-apple-darwin"
else
ARCH_INSTALL="$INSTALL_X86_64"
HOST_TRIPLE="x86_64-apple-darwin"
fi
ARCH_CFLAGS="-arch $ARCH -mmacosx-version-min=11.0"
./configure \
--prefix="$ARCH_INSTALL" \
--disable-shared \
--enable-static \
--with-pic \
--host="$HOST_TRIPLE" \
CFLAGS="$ARCH_CFLAGS" \
LDFLAGS="-arch $ARCH" \
> /dev/null
make -j"$(sysctl -n hw.ncpu 2>/dev/null || echo 4)" > /dev/null 2>&1
make install > /dev/null
done
# Merge with lipo
echo "[fetch-libsodium] Creating universal binary with lipo..."
mkdir -p "$INSTALL_DIR/lib" "$INSTALL_DIR/include"
lipo -create \
"$INSTALL_ARM64/lib/libsodium.a" \
"$INSTALL_X86_64/lib/libsodium.a" \
-output "$INSTALL_DIR/lib/libsodium.a"
cp -R "$INSTALL_ARM64/include/"* "$INSTALL_DIR/include/"
# Clean up per-arch builds
rm -rf "$INSTALL_ARM64" "$INSTALL_X86_64"
cd "$PROJECT_DIR"
rm -rf "$SRC_DIR"
rm -f "$TARBALL"
echo "[fetch-libsodium] Done (universal): $INSTALL_DIR/lib/libsodium.a"
lipo -info "$INSTALL_DIR/lib/libsodium.a"
exit 0
fi
echo "[fetch-libsodium] Configuring for target: $TARGET ..."
./configure "${CONFIGURE_ARGS[@]}" > /dev/null
echo "[fetch-libsodium] Building..."
make -j"$(nproc)" > /dev/null 2>&1
echo "[fetch-libsodium] Installing to $INSTALL_DIR ..."
make install > /dev/null
# ── Cleanup ─────────────────────────────────────────────────────────────────
cd "$PROJECT_DIR"
rm -rf "$SRC_DIR"
rm -f "$TARBALL"
echo "[fetch-libsodium] Done: $INSTALL_DIR/lib/libsodium.a"