更新libclamav库1.0.0版本

clamav/libclamav_rust/.cargo/vendor/bindgen/README.md

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+[![crates.io](https://img.shields.io/crates/v/bindgen.svg)](https://crates.io/crates/bindgen)
+[![docs.rs](https://docs.rs/bindgen/badge.svg)](https://docs.rs/bindgen/)
+
+# `bindgen`
+
+**`bindgen` automatically generates Rust FFI bindings to C (and some C++) libraries.**
+
+For example, given the C header `doggo.h`:
+
+```c
+typedef struct Doggo {
+    int many;
+    char wow;
+} Doggo;
+
+void eleven_out_of_ten_majestic_af(Doggo* pupper);
+```
+
+`bindgen` produces Rust FFI code allowing you to call into the `doggo` library's
+functions and use its types:
+
+```rust
+/* automatically generated by rust-bindgen 0.99.9 */
+
+#[repr(C)]
+pub struct Doggo {
+    pub many: ::std::os::raw::c_int,
+    pub wow: ::std::os::raw::c_char,
+}
+
+extern "C" {
+    pub fn eleven_out_of_ten_majestic_af(pupper: *mut Doggo);
+}
+```
+
+## Users Guide
+
+[📚 Read the `bindgen` users guide here! 📚](https://rust-lang.github.io/rust-bindgen)
+
+## MSRV
+
+The minimum supported Rust version is **1.46**.
+
+No MSRV bump policy has been established yet, so MSRV may increase in any release.
+
+## API Reference
+
+[API reference documentation is on docs.rs](https://docs.rs/bindgen)
+
+## Environment Variables
+
+In addition to the [library API](https://docs.rs/bindgen) and [executable command-line API][bindgen-cmdline],
+`bindgen` can be controlled through environment variables.
+
+End-users should set these environment variables to modify `bindgen`'s behavior without modifying the source code of direct consumers of `bindgen`.
+
+- `BINDGEN_EXTRA_CLANG_ARGS`: extra arguments to pass to `clang`
+    - Arguments are whitespace-separated
+    - Use shell-style quoting to pass through whitespace
+    - Examples:
+        - Specify alternate sysroot: `--sysroot=/path/to/sysroot`
+        - Add include search path with spaces: `-I"/path/with spaces"`
+- `BINDGEN_EXTRA_CLANG_ARGS_<TARGET>`: similar to `BINDGEN_EXTRA_CLANG_ARGS`,
+   but used to set per-target arguments to pass to clang. Useful to set system include
+   directories in a target-specific way in cross-compilation environments with multiple targets.
+   Has precedence over `BINDGEN_EXTRA_CLANG_ARGS`.
+
+Additionally, `bindgen` uses `libclang` to parse C and C++ header files.
+To modify how `bindgen` searches for `libclang`, see the [`clang-sys` documentation][clang-sys-env].
+For more details on how `bindgen` uses `libclang`, see the [`bindgen` users guide][bindgen-book-clang].
+
+## Releases
+
+We don't follow a specific release calendar, but if you need a release please
+file an issue requesting that (ping `@emilio` for increased effectiveness).
+
+## Contributing
+
+[See `CONTRIBUTING.md` for hacking on `bindgen`!](./CONTRIBUTING.md)
+
+[bindgen-cmdline]: https://rust-lang.github.io/rust-bindgen/command-line-usage.html
+[clang-sys-env]: https://github.com/KyleMayes/clang-sys#environment-variables
+[bindgen-book-clang]: https://rust-lang.github.io/rust-bindgen/requirements.html#clang