43 lines
1.9 KiB
Plaintext
43 lines
1.9 KiB
Plaintext
# By default Rust will not export dynamic symbols from built executables.
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# Python symbols need to be exported from executables in order for that
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# executable to load Python extension modules, which are shared libraries.
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# Otherwise, the extension module / shared library is unable to resolve
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# Python symbols. This file contains target-specific configuration
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# overrides to export dynamic symbols from executables.
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#
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# Ideally we would achieve this functionality via the build.rs build
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# script. But custom compiler flags via build scripts apparently only
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# support limited options.
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[target.i686-unknown-linux-gnu]
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rustflags = ["-C", "link-args=-Wl,-export-dynamic"]
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[target.x86_64-unknown-linux-gnu]
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rustflags = ["-C", "link-args=-Wl,-export-dynamic"]
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[target.aarch64-apple-darwin]
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rustflags = ["-C", "link-args=-rdynamic"]
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[target.x86_64-apple-darwin]
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rustflags = ["-C", "link-args=-rdynamic"]
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# The Windows standalone_static distributions use the static CRT (/MT compiler
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# flag). By default, Rust will build with the dynamically linked / DLL CRT
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# (/MD compiler flag). `pyoxidizer build` should adjust RUSTFLAGS automatically
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# when a standalone_static distribution is being used. But if invoking `cargo`
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# directly, you'll need to override the default CRT linkage by either passing
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# RUSTFLAGS="-C target-feature=+crt-static" or by commenting out the lines
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# below. Note that use of `target-feature=+crt-static` will prevent
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# standalone_dynamic distributions from working.
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#
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# The standalone_static distributions also have duplicate symbols and some
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# build configurations will result in hard linker errors because of this. We
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# also add the /FORCE:MULTIPLE linker argument to prevent this from being a
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# fatal error.
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#[target.i686-pc-windows-msvc]
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#rustflags = ["-C", "target-feature=+crt-static", "-C", "link-args=/FORCE:MULTIPLE"]
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#
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#[target.x86_64-pc-windows-msvc]
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#rustflags = ["-C", "target-feature=+crt-static", "-C", "link-args=/FORCE:MULTIPLE"]
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