sccache has problems with CMake in utility mode
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- Dominant language
- Rust
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Description
I'm using sccache in project that needs to compile libpng.
cmake for that project uses ustility mode, that is triggered by flag -E.
Unfortunatly sccache wont work correclly in that case, resulting in:
libpng/1.6.39: RUN: cmake --build "/opt/conan_global/p/b/libpn10c254bef1df0/b/build/Debug" -- -j16
[ 1%] Generating pnglibconf.c
[ 3%] Generating pngprefix.h
[ 4%] Generating scripts/symbols.out
[ 6%] Generating scripts/pnglibconf.c
error: unexpected argument '-E' found
tip: to pass '-E' as a value, use '-- -E'
Usage: sccache [OPTIONS] <--dist-auth|--debug-preprocessor-cache|--dist-status|--show-stats|--show-adv-stats|--start-server|--stop-server|--zero-stats|--package-toolchain |CMD>
Contributor guide
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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
No file or test is named in the issue. Start by tracing sccache's command-line argument handling and reproduce the failure with CMake utility mode using the -E flag; done means utility-mode commands pass -E correctly and the reported libpng build completes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cmake, rust
- Domain
- build-system, cli
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100