C3

Internal for the C3 project.

Building

• Build LLVM 4 and Clang from source (libclang.a is needed, and pre-built packages won't have it).
• Add directory containing llvm-config to your PATH, or set LLVM_CONFIG_PATH env variable poiting to the llvm-config executable file.
• Set LIBCLANG_INCLUDE_PATH pointing to Clang's include directory (<clang install dir>/clang/include/)

Building clang

This will require 20GB of disk space and 16GB of RAM.

• Install cmake, subversion, build-essential, libffi-dev, libncursesw5-dev
• curl -LO http://releases.llvm.org/4.0.1/llvm-4.0.1.src.tar.xz
• tar xf llvm-4.0.1.src.tar.xz
• cd llvm-4.0.1.src/tools
• svn co http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_401/final clang
• cd .. # back to llvm-4.0.1.src dir
• mkdir build; cd build
• cmake -G "Unix Makefiles" -DLIBCLANG_BUILD_STATIC=ON ..
  • or cmake -G "Unix Makefiles" -DLIBCLANG_BUILD_STATIC=ON -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_INCLUDE_TESTS=OFF -DCMAKE_BUILD_TYPE=MinSizeRel -DLLVM_BUILD_LLVM_DYLIB=OFF ..
• make -j8
  • if it runs out of memory, try without -j8
• Take a nap.
• cd .. # back to llvm-4.0.1.src dir
• export LIBCLANG_INCLUDE_PATH="$PWD/tools/clang/include/:$PWD/include/"
• export LIBCLANG_STATIC_PATH="$PWD/build/lib/"
• export LLVM_CONFIG_PATH="$PWD/build/bin/llvm-config"