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Merge pull request #336 from justdan96/update-build-clang
Update build_clang.sh to Build Latest LLVM Releases
This commit is contained in:
Thomas Pöchtrager
GitHub
commit
2f678598d9
207
build_clang.sh
207
build_clang.sh
@ -19,44 +19,106 @@ mkdir -p $BUILD_DIR
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source $BASE_DIR/tools/trap_exit.sh
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if [ -z "$CLANG_VERSION" ]; then
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CLANG_VERSION=10.0.1
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CLANG_VERSION=12.0.0
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fi
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if [ -z "$INSTALLPREFIX" ]; then
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INSTALLPREFIX="/usr/local"
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fi
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require cmake
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# acceptable values are llvm or apple
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if [ -z "$GITPROJECT" ]; then
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GITPROJECT="apple"
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fi
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LLVM_PKG=""
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CLANG_PKG=""
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require cmake
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require bsdtar
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CLANG_LLVM_PKG=""
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function set_package_link()
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{
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pushd $BUILD_DIR &>/dev/null
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pushd $TARBALL_DIR &>/dev/null
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# Official LLVM project download URLs look like:
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# https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-10.0.1.zip
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# Apple LLVM project download URLs look like:
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# https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20200108.zip
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# where the branch-to-major-version lookup is the below:
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# apple/stable/20210107 = 12
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# apple/stable/20200714 = 11
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# apple/stable/20200108 = 10
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# apple/stable/20190619 = 9
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# apple/stable/20190104 = 8
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# apple/stable/20180801 = 7
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# apple/stable/20180103 = 6
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# apple/stable/20170719 = 5
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# apple/stable/20170116 = 4
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if [ $GITPROJECT == "llvm" ]; then
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# with official LLVM we just pass the version straight into the URL
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CLANG_LLVM_PKG="https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-$CLANG_VERSION.zip"
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elif [ $GITPROJECT == "apple" ]; then
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# with Apple LLVM we only get each major version as a stable branch so we just compare the input major version
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CLANG_VERSION_PARTS=(${CLANG_VERSION//./ })
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case ${CLANG_VERSION_PARTS[0]} in
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DOWNLOAD_PAGE=llvmorg-$CLANG_VERSION
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download https://github.com/llvm/llvm-project/releases/tag/$DOWNLOAD_PAGE &>/dev/null
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12)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20210107.zip"
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;;
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if [[ $(file $DOWNLOAD_PAGE) == *gzip* ]]; then
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mv $DOWNLOAD_PAGE $DOWNLOAD_PAGE.gz
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require gzip
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gzip -d $DOWNLOAD_PAGE.gz
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11)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20200714.zip"
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;;
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10)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20200108.zip"
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;;
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9)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20190619.zip"
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;;
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8)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20190104.zip"
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;;
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7)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20180801.zip"
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;;
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6)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20180103.zip"
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;;
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5)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20170719.zip"
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;;
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4)
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CLANG_LLVM_PKG="https://github.com/apple/llvm-project/archive/refs/heads/apple/stable/20170116.zip"
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;;
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*)
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echo "Unknown Apple Clang version $CLANG_VERSION!" 1>&2
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exit 1
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;;
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esac
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fi
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links=$(cat $DOWNLOAD_PAGE | grep -Po '(?<=href=")[^"]*' | grep -v "\.sig")
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rm -f $DOWNLOAD_PAGE
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LLVM_PKG=$(echo "$links" | grep "llvm-$CLANG_VERSION.src" | head -n 1 || true)
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CLANG_PKG=$(echo "$links" | grep -E "(clang|cfe)-$CLANG_VERSION.src" | head -n 1 || true)
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if [ -n "$LLVM_PKG" ] && [[ $LLVM_PKG != https* ]]; then
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LLVM_PKG="https://github.com/$LLVM_PKG"
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CLANG_PKG="https://github.com/$CLANG_PKG"
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# after we generate the URL string above we need to actually check it works
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if [ ! -f $(basename $CLANG_LLVM_PKG) ] && [ $(curl --head -L $CLANG_LLVM_PKG -o /dev/stderr -w "%{http_code}" 2> /dev/null) -ne 200 ]; then
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echo "Release $CLANG_VERSION not found in $GITPROJECT repo!" 1>&2
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exit 1
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fi
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popd &>/dev/null
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popd &>/dev/null #$TARBALL_DIR
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}
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set_package_link
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if [ -z "$LLVM_PKG" ] || [ -z "$CLANG_PKG" ]; then
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if [ -z "CLANG_LLVM_PKG" ]; then
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echo "Release $CLANG_VERSION not found!" 1>&2
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exit 1
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fi
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@ -81,7 +143,7 @@ if [ $PLATFORM != "Darwin" -a $PLATFORM != "FreeBSD" ]; then
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fi
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echo "Building Clang/LLVM $CLANG_VERSION may take a long time."
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echo "Building Clang/LLVM $GITPROJECT-$CLANG_VERSION may take a long time."
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echo "Installation Prefix: $INSTALLPREFIX"
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if [ -z "$UNATTENDED" ]; then
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@ -90,85 +152,58 @@ if [ -z "$UNATTENDED" ]; then
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echo ""
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fi
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# download the GitHub repo as a ZIP file - but only if it doesn't exist already
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pushd $TARBALL_DIR &>/dev/null
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download $LLVM_PKG
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download $CLANG_PKG
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popd &>/dev/null
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pushd $BUILD_DIR &>/dev/null
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echo "cleaning up ..."
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rm -rf llvm* 2>/dev/null
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extract "$TARBALL_DIR/$(basename $LLVM_PKG)"
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pushd llvm* &>/dev/null
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pushd tools &>/dev/null
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extract "$TARBALL_DIR/$(basename $CLANG_PKG)"
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echo ""
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[ -e clang* ] && mv clang* clang
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[ -e cfe* ] && mv cfe* clang
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popd &>/dev/null
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function build()
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{
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stage=$1
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mkdir -p $stage
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pushd $stage &>/dev/null
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cmake .. \
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-DCMAKE_INSTALL_PREFIX=$INSTALLPREFIX \
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-DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_ASSERTIONS=OFF \
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-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=1
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$MAKE $2 -j $JOBS VERBOSE=1
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popd &>/dev/null
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}
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if [ -n "$DISABLE_BOOTSTRAP" ]; then
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build build
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else
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build build_stage1 clang
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export CC=$PWD/build_stage1/bin/clang
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export CXX=$PWD/build_stage1/bin/clang++
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if [ -z "$PORTABLE" ]; then
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export CFLAGS="-march=native"
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export CXXFLAGS="-march=native"
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fi
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build build_stage2
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if [ -n "$ENABLE_FULL_BOOTSTRAP" ]; then
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CC=$PWD/build_stage2/bin/clang \
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CXX=$PWD/build_stage2/bin/clang++ \
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build build_stage3
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fi
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if [ ! -f $(basename $CLANG_LLVM_PKG) ]; then
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download $CLANG_LLVM_PKG
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fi
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popd &>/dev/null #$TARBALL_DIR
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# extract ZIP using bsdtar so we can remove the parent directory
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pushd $BUILD_DIR &>/dev/null
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echo "extracting ..."
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bsdtar --strip-components=1 -xf $TARBALL_DIR/$(basename $CLANG_LLVM_PKG) 1>/dev/null
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# DISABLE_BOOTSTRAP no longer available
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# ENABLE_FULL_BOOTSTRAP no longer available
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if [ -z "$PORTABLE" ]; then
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export CFLAGS="-march=native"
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export CXXFLAGS="-march=native"
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fi
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# build clang, llvm, libc++ and libc++abi in one go
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mkdir build_stage
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pushd build_stage &>/dev/null
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cmake ../llvm \
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-G "Unix Makefiles" \
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-DCMAKE_INSTALL_PREFIX=/usr/local \
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-DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_ASSERTIONS=OFF \
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-DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi" \
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-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=1
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$MAKE -j $JOBS VERBOSE=1
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# install, but only if it is globally enabled
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if [ -z "$ENABLE_CLANG_INSTALL" ]; then
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echo ""
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echo "Done!"
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echo ""
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echo -n "cd into '$PWD/$stage' and type 'make install' to install "
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echo -n "cd into '$BUILD_DIR/build_stage' and type 'make install' to install "
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echo "clang/llvm to '$INSTALLPREFIX'"
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echo ""
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else
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pushd $stage &>/dev/null
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$MAKE install -j $JOBS VERBOSE=1
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popd &>/dev/null
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echo ""
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echo "Done!"
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echo ""
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fi
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popd &>/dev/null #build_stage
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popd &>/dev/null # llvm
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popd &>/dev/null
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popd &>/dev/null #$BUILD_DIR
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popd &>/dev/null #"${0%/*}"
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