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Make builds incremental by preserving source/build dirs (#45)

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This commit is contained in:
Adeeb Shihadeh
2026-03-04 09:17:55 -08:00
committed by GitHub
parent 2e9aed768a
commit 331d94a683
37 changed files with 221 additions and 367 deletions
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18
libjpeg/build.sh
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@@ -7,18 +7,15 @@ cd "$DIR"
VERSION="3.1.0"
INSTALL_DIR="$DIR/libjpeg/install"
# Idempotent: skip if already built
if [ -f "$INSTALL_DIR/lib/libjpeg.a" ]; then
echo "libjpeg already present, skipping build."
exit 0
fi
NJOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 2)"
# Clone
if [ ! -d "libjpeg-turbo-src" ]; then
git clone --depth 1 --branch "${VERSION}" https://github.com/libjpeg-turbo/libjpeg-turbo.git libjpeg-turbo-src
# Clone/update source
if [ ! -d "libjpeg-turbo-src/.git" ]; then
rm -rf libjpeg-turbo-src
git clone --depth 1 https://github.com/libjpeg-turbo/libjpeg-turbo.git libjpeg-turbo-src
fi
git -C libjpeg-turbo-src fetch --depth 1 origin "${VERSION}"
git -C libjpeg-turbo-src checkout --force FETCH_HEAD
# Build
PREFIX="$DIR/build/prefix"
@@ -50,8 +47,5 @@ cp "$PREFIX/include/jconfig.h" "$INSTALL_DIR/include/"
cp "$PREFIX/include/jerror.h" "$INSTALL_DIR/include/"
cp "$PREFIX/include/jmorecfg.h" "$INSTALL_DIR/include/"
# Clean up
rm -rf libjpeg-turbo-src "$DIR/build"
echo "Installed libjpeg to $INSTALL_DIR"
du -sh "$INSTALL_DIR"