

If you are space-constrained, you can build only selected tools or only Libraries are statically linked into multiple tools). Is so large because of all the debugging information and the fact that the The exact space requirements will vary by system. A full build of LLVM and Clang will need aroundġ5-20 GB of disk space. Note that Debug builds require a lot of time and disk space.

That’s done by default in Ninja for make, use the LLVM sub-projects generate their own check- target. CMake will generate build targets for each tool and library, and most.Regression tests to ensure everything is in working order. (default is Yes for Debug builds, No for all other build types).Ĭmake -build. DLLVM_ENABLE_ASSERTIONS=On - Compile with assertion checks enabled The default value is Debug which fits people who want DCMAKE_BUILD_TYPE=type - Controls optimization level and debug information Pathname of where you want the LLVM tools and libraries to be installed DCMAKE_INSTALL_PREFIX=directory - Specify for directory the full DLLVM_ENABLE_PROJECTS="clang" -DLLVM_ENABLE_RUNTIMES="libcxx libcxxabi". Can include any of: clang,Ĭlang-tools-extra, lldb, compiler-rt, lld, polly, or cross-project-tests.įor example, to build LLVM, Clang, libcxx, and libcxxabi, use Subprojects you’d like to additionally build. DLLVM_ENABLE_PROJECTS='.' - semicolon-separated list of the LLVM

Visual Studio - for generating Visual Studio projects and.Unix Makefiles - for generating make-compatible parallel makefiles.To save storage and speed-up the checkout time, you may want to do aįor example, to get the latest revision of the LLVM project, useĬmake -G -DCMAKE_BUILD_TYPE=.Or, on windows, git clone -config tocrlf=false.This is an example workflow and configuration to get and build the LLVM source:Ĭheckout LLVM (including related subprojects like Clang): The LLVM Getting Started documentation may be out of date. Getting the Source Code and Building LLVM ¶
