[cmake] Not using clang when LLVM=ON is specified
Open
Nobody has claimed this yet.
P-low
- Dominant language
- Lean
- Stars
- 9.2k
- Forks
- 990
- Avg merge
- 1d 17h
- Merged PRs (30d)
- 175
Description
Description
When building using cmake -B build -DLLVM=ON, stage1 fails to build when the default compiler is gcc.
Workaround
Set environment variable CC=clang and CXX=clang++ before using cmake
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure with cmake -B build -DLLVM=ON while the default compiler is gcc, then compare it with the CC=clang and CXX=clang++ workaround. Trace the CMake configuration for the LLVM option and stage1 build; done means stage1 builds successfully without manually setting those environment variables.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cmake
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100