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llvm / llvm-project / 4c7b5dfbc26880c5683494476c208ebb8c95bb22
commit4c7b5dfbc26880c5683494476c208ebb8c95bb22[log] [tgz]
authorDavid Spickett <david.spickett@linaro.org>Wed Dec 10 09:29:09 2025 +0000
committerGitHub <noreply@github.com>Wed Dec 10 09:29:09 2025 +0000
treeef287f2673c55dfaaaa61ae040ebbfd9ccceb8e0
parent4ff1bd53c25e252b6bafd50efde2499281fe8309 [diff]
[flang][docs] Do not recommend FLANG_ENABLE_WERROR=ON... (#171152)

...unless the reader is going to contribute to Flang.

Fixes #168911.

In which someone followed the getting started instructions but because
they were using GCC and it produced some warnings, those got upgraded to
errors and failed the build.

The GCC builds of anything in LLVM are always going to have some warning
of some kind, so while it would be nice to fix or silence them, let's
not inflict that on new developers.

This option defaults to `OFF` and is turned `ON` by a handful of bots,
so if the intent was to make developers more attentive to warnings, that
will still happen. Just a bit later, which that's better than putting
them off up front.

If they go on to contribute, they can switch to a Clang build and enable
the option to save themselves some post-commit hassle.
1 file changed
tree: ef287f2673c55dfaaaa61ae040ebbfd9ccceb8e0
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libsycl/
  16. libunwind/
  17. lld/
  18. lldb/
  19. llvm/
  20. llvm-libgcc/
  21. mlir/
  22. offload/
  23. openmp/
  24. orc-rt/
  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
  30. .clang-format-ignore
  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

The LLVM Compiler Infrastructure

OpenSSF Scorecard OpenSSF Best Practices libc++

Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

Consult the Getting Started with LLVM page for information on building and running LLVM.

For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting in touch

Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.

The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.