Set CMAKE_SYSTEM_NAME when cross-compiling #75376
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@Mark-Simulacrum I would appreciate the review of this, to unblock #74576, where incorrect evaluation of CMAKE_SYSTEM_NAME breaks the tsan build. Thanks. |
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https://cmake.org/cmake/help/latest/variable/CMAKE_SYSTEM_NAME.html seems to indicate that we should also be setting CMAKE_SYSTEM_VERSION - is that not the case? |
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Yes, I would expect that should be done as well. Fixing this might be non-trivial since rustc targets do not include version. |
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Seems reasonable. r=me with a comment added about the version not being set and our belief that not setting it should be fine (basically your last comment inserted into the code). |
Configure CMAKE_SYSTEM_NAME when cross-compiling in `configure_cmake`, to tell CMake about target system. Previously this was done only for LLVM step and now applies more generally to steps using cmake.
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Added a comment about CMAKE_SYSTEM_VERSION. |
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@bors r+ |
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📌 Commit 91f87bc has been approved by |
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Rollup of 4 pull requests Successful merges: - rust-lang#75376 (Set CMAKE_SYSTEM_NAME when cross-compiling) - rust-lang#75448 (merge `as_local_hir_id` with `local_def_id_to_hir_id`) - rust-lang#75513 (Recover gracefully from `struct` parse errors) - rust-lang#75545 (std/sys/unix/time: make it easier for LLVM to optimize `Instant` subtraction.) Failed merges: - rust-lang#75514 (Replaced `log` with `tracing`) r? @ghost
Configure CMAKE_SYSTEM_NAME when cross-compiling in
configure_cmake,to tell CMake about target system. Previously this was done only for
LLVM step and now applies more generally to steps using cmake.
Helps with #74576.