从 APT 安装
Install the GPG Key for https://apt.llvm.org/
wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
Add the repo for Clang 11 stable-old for Ubuntu 18.04 Bionic
echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main" | sudo tee -a /etc/apt/sources.list
sudo apt-get update
Install practically everything (except python-clang-11 which for some reason doesn't work)
sudo apt-get install libllvm-11-ocaml-dev libllvm11 llvm-11 llvm-11-dev llvm-11-doc llvm-11-examples llvm-11-runtime \
clang-11 clang-tools-11 clang-11-doc libclang-common-11-dev libclang-11-dev libclang1-11 clang-format-11 clangd-11 \
libfuzzer-11-dev lldb-11 lld-11 libc++-11-dev libc++abi-11-dev libomp-11-dev -y
Make Clang 11 and everything related to it defaults
sudo update-alternatives \
--install /usr/lib/llvm llvm /usr/lib/llvm-11 50 \
--slave /usr/bin/llvm-config llvm-config /usr/bin/llvm-config-11 \
--slave /usr/bin/llvm-ar llvm-ar /usr/bin/llvm-ar-11 \
--slave /usr/bin/llvm-as llvm-as /usr/bin/llvm-as-11 \
--slave /usr/bin/llvm-bcanalyzer llvm-bcanalyzer /usr/bin/llvm-bcanalyzer-11 \
--slave /usr/bin/llvm-cov llvm-cov /usr/bin/llvm-cov-11 \
--slave /usr/bin/llvm-diff llvm-diff /usr/bin/llvm-diff-11 \
--slave /usr/bin/llvm-dis llvm-dis /usr/bin/llvm-dis-11 \
--slave /usr/bin/llvm-dwarfdump llvm-dwarfdump /usr/bin/llvm-dwarfdump-11 \
--slave /usr/bin/llvm-extract llvm-extract /usr/bin/llvm-extract-11 \
--slave /usr/bin/llvm-link llvm-link /usr/bin/llvm-link-11 \
--slave /usr/bin/llvm-mc llvm-mc /usr/bin/llvm-mc-11 \
--slave /usr/bin/llvm-mcmarkup llvm-mcmarkup /usr/bin/llvm-mcmarkup-11 \
--slave /usr/bin/llvm-nm llvm-nm /usr/bin/llvm-nm-11 \
--slave /usr/bin/llvm-objdump llvm-objdump /usr/bin/llvm-objdump-11 \
--slave /usr/bin/llvm-ranlib llvm-ranlib /usr/bin/llvm-ranlib-11 \
--slave /usr/bin/llvm-readobj llvm-readobj /usr/bin/llvm-readobj-11 \
--slave /usr/bin/llvm-rtdyld llvm-rtdyld /usr/bin/llvm-rtdyld-11 \
--slave /usr/bin/llvm-size llvm-size /usr/bin/llvm-size-11 \
--slave /usr/bin/llvm-stress llvm-stress /usr/bin/llvm-stress-11 \
--slave /usr/bin/llvm-symbolizer llvm-symbolizer /usr/bin/llvm-symbolizer-11 \
--slave /usr/bin/llvm-tblgen llvm-tblgen /usr/bin/llvm-tblgen-11
sudo update-alternatives \
--install /usr/bin/clang clang /usr/bin/clang-11 50 \
--slave /usr/bin/clang++ clang++ /usr/bin/clang++-11 \
--slave /usr/bin/lld lld /usr/bin/lld-11 \
--slave /usr/bin/clang-format clang-format /usr/bin/clang-format-11 \
--slave /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-11 \
--slave /usr/bin/clang-tidy-diff.py clang-tidy-diff.py /usr/bin/clang-tidy-diff-11.py \
--slave /usr/bin/clang-include-fixer clang-include-fixer /usr/bin/clang-include-fixer-11 \
--slave /usr/bin/clang-offload-bundler clang-offload-bundler /usr/bin/clang-offload-bundler-11 \
--slave /usr/bin/clangd clangd /usr/bin/clangd-11 \
--slave /usr/bin/clang-check clang-check /usr/bin/clang-check-11 \
--slave /usr/bin/scan-view scan-view /usr/bin/scan-view-11 \
--slave /usr/bin/clang-apply-replacements clang-apply-replacements /usr/bin/clang-apply-replacements-11 \
--slave /usr/bin/clang-query clang-query /usr/bin/clang-query-11 \
--slave /usr/bin/modularize modularize /usr/bin/modularize-11 \
--slave /usr/bin/sancov sancov /usr/bin/sancov-11 \
--slave /usr/bin/c-index-test c-index-test /usr/bin/c-index-test-11 \
--slave /usr/bin/clang-reorder-fields clang-reorder-fields /usr/bin/clang-reorder-fields-11 \
--slave /usr/bin/clang-change-namespace clang-change-namespace /usr/bin/clang-change-namespace-11 \
--slave /usr/bin/clang-import-test clang-import-test /usr/bin/clang-import-test-11 \
--slave /usr/bin/scan-build scan-build /usr/bin/scan-build-11 \
--slave /usr/bin/scan-build-py scan-build-py /usr/bin/scan-build-py-11 \
--slave /usr/bin/clang-cl clang-cl /usr/bin/clang-cl-11 \
--slave /usr/bin/clang-rename clang-rename /usr/bin/clang-rename-11 \
--slave /usr/bin/find-all-symbols find-all-symbols /usr/bin/find-all-symbols-11 \
--slave /usr/bin/lldb lldb /usr/bin/lldb-11 \
--slave /usr/bin/lldb-server lldb-server /usr/bin/lldb-server-11
Installing CMake
Install Kitware's GPG Key
wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
Add repository
echo "deb https://apt.kitware.com/ubuntu/ bionic main" | sudo tee -a /etc/apt/sources.list
sudo apt-get update
Install this optional package so you don't have to mess with GPG keys anymore
sudo apt-get install kitware-archive-keyring
sudo rm /etc/apt/trusted.gpg.d/kitware.gpg
Now upgrade cmake if you already have it installed with sudo apt-get upgrade -y or just install it using sudo apt-get install cmake -y
使用源码安装
# 更新软件包列表
sudo apt update
# 安装必要的依赖包
sudo apt install build-essential cmake python3-dev
# 下载 Clang/LLVM 11 的源代码
wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/llvm-11.0.0.src.tar.xz
# 解压源代码文件
tar xvf llvm-11.0.0.src.tar.xz
# 进入解压后的目录
cd llvm-11.0.0.src
# 创建一个新的目录，用于存放 Clang/LLVM 编译的结果
mkdir build
cd build
# 使用 cmake 编译 Clang/LLVM
cmake ..
# 编译 Clang/LLVM
make
# 安装 Clang/LLVM
sudo make install