linker: MSVC supports linking static libraries as a whole archive #72785
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…sper linker: MSVC supports linking static libraries as a whole archive
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Rollup of 10 pull requests Successful merges: - rust-lang#72280 (Fix up autoderef when reborrowing) - rust-lang#72785 (linker: MSVC supports linking static libraries as a whole archive) - rust-lang#73011 (first stage of implementing LLVM code coverage) - rust-lang#73044 (compiletest: Add directives to detect sanitizer support) - rust-lang#73054 (memory access sanity checks: abort instead of panic) - rust-lang#73136 (Change how compiler-builtins gets many CGUs) - rust-lang#73280 (Add E0763) - rust-lang#73317 (bootstrap: read config from $RUST_BOOTSTRAP_CONFIG) - rust-lang#73350 (bootstrap/install.rs: support a nonexistent `prefix` in `x.py install`) - rust-lang#73352 (Speed up bootstrap a little.) Failed merges: r? @ghost
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@petrochenkov There has been a user report that this change broke MSVC builds:
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FaultyRAM
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Feb 26, 2021
rust-lang/rust#72785 introduced a breaking change for MSVC targets that causes linking against a static library to fail when using `cargo:rustc-link-lib=static`. As a workaround, remove `=static` from the MSVC code until Rust allows disabling whole archive linking.
Dylan-DPC-zz
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…lacrum linker: Avoid library duplication with `/WHOLEARCHIVE` Looks like in rust-lang#72785 I misinterpreted how the `link.exe`'s `/WHOLEARCHIVE` flag works. It's not necessary to write `mylib /WHOLEARCHIVE:mylib` to mark `mylib` as whole archive, `/WHOLEARCHIVE:mylib` alone is enough. https://docs.microsoft.com/en-us/cpp/build/reference/wholearchive-include-all-library-object-files?view=msvc-160
Dylan-DPC-zz
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May 7, 2021
…lacrum linker: Avoid library duplication with `/WHOLEARCHIVE` Looks like in rust-lang#72785 I misinterpreted how the `link.exe`'s `/WHOLEARCHIVE` flag works. It's not necessary to write `mylib /WHOLEARCHIVE:mylib` to mark `mylib` as whole archive, `/WHOLEARCHIVE:mylib` alone is enough. https://docs.microsoft.com/en-us/cpp/build/reference/wholearchive-include-all-library-object-files?view=msvc-160
Dylan-DPC-zz
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May 7, 2021
…lacrum linker: Avoid library duplication with `/WHOLEARCHIVE` Looks like in rust-lang#72785 I misinterpreted how the `link.exe`'s `/WHOLEARCHIVE` flag works. It's not necessary to write `mylib /WHOLEARCHIVE:mylib` to mark `mylib` as whole archive, `/WHOLEARCHIVE:mylib` alone is enough. https://docs.microsoft.com/en-us/cpp/build/reference/wholearchive-include-all-library-object-files?view=msvc-160
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