Learning Sandbox

Setting Up Environment

Installing the stuff we need to install CMake from source

• sudo apt update && sudo apt upgrade
• sudo apt install build-essential
• sudo apt-get update
• sudo apt-get install libssl-dev

Installing CMake from source

• mkdir cmake-install
• cd cmake-install/
• wget https://github.com/Kitware/CMake/releases/download/v3.27.1/cmake-3.27.1.tar.gz
• tar -xvf cmake-3.27.1.tar.gz
• cd cmake-3.27.1
• ./bootstrap -- -DCMAKE_BUILD_TYPE:STRING=Release
• make
• make install
• cd / && rm -rf cmake-install

Installing the stuff we need to install LLVM

• mkdir llvm-install
• cd llvm-install
• sudo wget -qO /usr/local/bin/ninja.gz https://github.com/ninja-build/ninja/releases/latest/download/ninja-linux.zip
• sudo gunzip /usr/local/bin/ninja.gz
• sudo chmod a+x /usr/local/bin/ninja
• sudo apt-get install software-properties-common
• sudo add-apt-repository ppa:deadsnakes/ppa
• sudo apt-get update
• sudo apt-get install swig libedit-dev libncurses5-dev libncursesw5-dev liblzma-dev python3.8 libxml2-dev
• Follow those instructions to install CUDA.
• Set CUDA_PATH to your CUDA installation path, e.g. /usr/local/cuda-12.2

Installing GCC from source, to be able to build LLVM

If this works, thanks to this guy:

• Create some folder as a workspace, say /gcc-install
• Move to that folder
• Run wget https://github.com/gcc-mirror/gcc/archive/refs/tags/releases/gcc-12.2.0.tar.gz
• Extract the thing: tar -xvf gcc-12.2.0.tar.gz
• Navigate to the folder: cd gcc-releases-gcc-12.2.0
• Run the provided script which downloads and installs prerequisites: contrib/download_prerequisites
• Some guy says some other dependencies might be missing. Run this just to be sure:
  • sudo apt update && sudo apt install bzip2 flex
• Create a build directory outside this:

cd ~/gcc-install
mkdir build

• Run whatever this is: ../gcc-releases-gcc-12.2.0/configure -v --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --prefix=/usr/local/gcc-12.2.0 --enable-checking=release --enable-languages=c,c++,fortran --disable-multilib --program-suffix=-12.2
• Build it: make -j 16
• Install it: sudo make install-strip
• Do some more magic:

export PATH=/usr/local/gcc-12.2.0/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/gcc-12.2.0/lib64:$LD_LIBRARY_PATH

• Let CMake know

export CC=/usr/local/gcc-12.2.0/bin/gcc-12.2
export CXX=/usr/local/gcc-12.2.0/bin/g++-12.2
export FC=/usr/local/gcc-12.2.0/bin/gfortran-12.2

At this point, the build might still fail because the compiler fails to locate the assembler (which is installed as /usr/bin/as). If this is the case, create a symbolic link from gcc's bin folder to /usr/bin/as.

Installing LLVM

For clang-format and clang-tidy.

• sudo apt update && sudo apt install zlib1g-dev
• git clone https://github.com/llvm/llvm-project.git
• cd llvm-project
• Check out whichever version you want to use, e.g. 16.0.6: git checkout 7cbf1a2
• mkdir build
• cmake -S llvm -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra;cross-project-tests;libclc;lld;lldb;openmp;polly;pstl' -DCMAKE_INSTALL_PREFIX=/usr/local/llvm
• ninja -j 8 -C /llvm-install/llvm-project/build install

Install buildifier

Formatting and other help for working with Bazel:

• Install Go