mirror of
https://github.com/tpoechtrager/osxcross.git
synced 2024-08-17 20:40:28 +03:00
210 lines
5.3 KiB
Bash
Executable File
210 lines
5.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Build and install Clang/LLVM, using `gcc`.
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#
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# You only need to run this if your distribution does not provide
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# clang - or if you want to build your own version from a recent
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# source tree.
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#
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pushd "${0%/*}" &>/dev/null
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DESC=clang
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USESYSTEMCOMPILER=1
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source tools/tools.sh
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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=12.0.0
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fi
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if [ -z "$INSTALLPREFIX" ]; then
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INSTALLPREFIX="/usr/local"
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fi
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# acceptable values are llvm or apple
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if [ -z "$GITPROJECT" ]; then
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GITPROJECT="apple"
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fi
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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 $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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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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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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# 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 $GITPROJECT repo!" 1>&2
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exit 1
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fi
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popd &>/dev/null #$TARBALL_DIR
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}
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set_package_link
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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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function warn_if_installed()
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{
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set +e
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command -v $1 &>/dev/null && \
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{
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echo ""
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echo "It is highly recommended to uninstall previous $2 versions first:"
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echo "-> $(command -v $1 2>/dev/null)"
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echo ""
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}
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set -e
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}
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if [ $PLATFORM != "Darwin" -a $PLATFORM != "FreeBSD" ]; then
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warn_if_installed clang clang
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warn_if_installed llvm-config llvm
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fi
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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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echo ""
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read -p "Press enter to start building."
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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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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="$INSTALLPREFIX" \
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-DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_ASSERTIONS=OFF \
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-DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi" \
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-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=1
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$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 '$BUILD_DIR/build_stage' and type 'make install' to install "
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echo "clang/llvm to '$INSTALLPREFIX'"
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echo ""
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else
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$MAKE install -j $JOBS VERBOSE=1
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echo ""
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echo "Done!"
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echo ""
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fi
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popd &>/dev/null #build_stage
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popd &>/dev/null #$BUILD_DIR
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popd &>/dev/null #"${0%/*}"
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