Bug 1672012
| Summary: | clang $(llvm-config --cflags) doesn't work | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Emilio Cobos Álvarez (:emilio) <emilio> |
| Component: | clang | Assignee: | Tom Stellard <tstellar> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | airlied, davejohansen, sbergman, sguelton, siddharth.kde, tstellar |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-02-18 02:04:12 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
> I assume this is because llvm has been compiled with gcc, and using gcc instead of clang works.
Exactly. @tstellar, maybe clang should just issue a warning for this specific flag, instead of throwing an error?
This has been fixed upstream in LLVM by https://reviews.llvm.org/rL349068. Great. Should we backport it to llvm-7 then? Yes, let's backport it. I'll take this one. Submitted PR: https://src.fedoraproject.org/rpms/llvm/pull-request/9 llvm-7.0.1-3.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-b2152f77e0 llvm-7.0.1-3.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-b2152f77e0 llvm-7.0.1-3.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: The following command doesn't succeed on rawhide: $ echo "int main() {}" | clang $(llvm-config --cflags) -x c - It fails with: clang-7: error: unknown argument: '-fstack-clash-protection' I assume this is because llvm has been compiled with gcc, and using gcc instead of clang works. But it's a bit surprising being forced to compile clang plugins with gcc. Version-Release number of selected component (if applicable): clang version 7.0.1 (Fedora 7.0.1-2.fc30) How reproducible: Always Steps to Reproduce: 1. See above. Actual results: Fails as described above. Expected results: Succeeds, and generates an executable that does nothing.