Update Rust crate bindgen to 0.71.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
bindgen (source)	build-dependencies	minor	0.43 -> 0.71.1

---

Release Notes

rust-lang/rust-bindgen (bindgen)

v0.71.1

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Fixed

• Fix --version and --generate-shell-completions (#​3040)

v0.71.0

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Added

• Add the ParseCallbacks::new_item_found callback to expose the original and final name of structs, unions and enums (#​2658).
• Add the field_type_name field to FieldInfo to expose the name of the type of a field (#​2863)
• Add support for custom attributes with the --with-attribute-custom flag (#​2866)
• Allow setting --rust-target to any Rust version supported by bindgen (#​2993)
• Use c-string literals if the --generate-cstr flag is used for Rust targets after 1.77 under the 2021 edition (#​2996)
• Add the --rust-edition flag which allows to select which Rust edition to target. (#​3002, #​3013)
• Use unsafe extern instead of extern in blocks for any Rust target after 1.82. (#​3015)

Changed

• The --wrap-static-fns related options no longer require the experimental feature or flag (#​2928)
• Use the Display implementation instead of the Debug one for BindgenError in bindgen-cli (#​3005)

Removed

• Dropped support for any Clang versions strictly lower than 9.0 (#​2932)
• Dropped support for any Rust version strictly lower than 1.33 (#​2993)

Fixed

• Represent opaque types in a FFI-safe way (#​2880)
• Use the underlying type of any atomic type instead of panicking (#​2920)
• Use the right characters for newlines on windows (#​2923)
• Inlined namespaces are properly recognized now (#​2950)
• Unsafe calls to libloading are now wrapped in unsafe blocks when using dynamic loading (#​2961)
• The ParseCallbacks::field_visibility callback is now called for newtypes as well (#​2967)
• Gate the use of the addr_of and addr_of_mut macros under the 1.51 rust version (#​2988)

v0.70.1

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Added

Changed

Removed

Fixed

• Fix regression where the const layout tests were triggering the unnecessary_operation and identity_op clippy warnings.

Security

v0.70.0

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Added

• Add target mappings for riscv64imac and riscv32imafc.
• Add a complex macro fallback API (#​2779).
• Add option to use DST structs for flexible arrays (--flexarray-dst, #​2772).
• Add option to dynamically load variables (#​2812).
• Add option in CLI to use rustified non-exhaustive enums (--rustified-non-exhaustive-enum, #​2847).
• Add field_type_name to FieldInfo.

Changed

• Remove which and lazy-static dependencies (#​2809, #​2817).
• Generate compile-time layout tests (#​2787).
• Print bindgen-cli errors to stderr instead of stdout (#​2840)

Removed

Fixed

• Fix --formatter=prettyplease not working in bindgen-cli by adding prettyplease feature and
  enabling it by default for bindgen-cli (#​2789) .
• Fix --allowlist-item so anonymous enums are no longer ignored (#​2827).
• Use clang_getFileLocation instead of clang_getSpellingLocation to fix clang-trunk (#​2824).
• Fix generated constants: f64::INFINITY, f64::NEG_ INFINITY, f64::NAN (#​2854).

Security

• Update tempfile and rustix due to GHSA-c827-hfw6-qwvm.

v0.69.5

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Install bindgen-cli 0.69.5

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/rust-lang/rust-bindgen/releases/download/v0.69.5/bindgen-cli-installer.sh | sh

Download bindgen-cli 0.69.5

File	Platform	Checksum
bindgen-cli-aarch64-apple-darwin.tar.xz	Apple Silicon macOS	checksum
bindgen-cli-x86_64-apple-darwin.tar.xz	Intel macOS	checksum
bindgen-cli-x86_64-unknown-linux-gnu.tar.xz	x64 Linux	checksum

v0.69.4

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Added

Changed

• Allow older itertools. (#​2745)

Removed

Fixed

Security

v0.69.3

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Added

• Added blocklist_var (#​2731)
• Stabilized thiscall_abi (#​2661)

Changed

• Use CR consistently on windows (#​2698)
• Replaced peeking_take_while by itertools (#​2724)

Removed

Fixed

• Try to avoid repr(packed) for explicitly aligned types when not needed (#​2734)
• Improved destructor handling on Windows (#​2663)
• Support Float16 (#​2667)
• Fix alignment contribution from bitfields (#​2680)
• Fixed msrv build.

Security

• Updated shlex dependency (RUSTSEC-2024-0006)

v0.69.2

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Added

Changed

Removed

Fixed

• Fixed generation of extern "C" blocks with llvm 18+. See #​2689.

Security

v0.69.1

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Fixed

• Allow to run bindgen -v without an input header argument.

v0.69.0

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Added

• Added the ParseCallbacks::header_file callback which runs on every filename passed to Builder::header.
• Added the CargoCallbacks::new constructor which emits a cargo-rerun line
  for every input header file by default.
• Added the CargoCallbacks::rerun_on_header_files method to configure whether
  a cargo-rerun line should be emitted for every input header file.

Changed

• The --wrap-static-fns feature was updated so function types that has no
  argument use void as its sole argument.
• CargoCallbacks is no longer a unit-like
  struct and the
  CargoCallbacks constant was added to mitigate the breaking nature of this
  change. This constant has been marked as deprecated and users will have to
  use the new CargoCallbacks::new method in the future.

Removed

Fixed

• Allow compiling bindgen-cli with a static libclang.
• Emit an opaque integer type for pointer types that don't have the same size
  as the target's pointer size.
• Avoid escaping Objective-C method names unless they are Self, self,
  crate or super.

Security

v0.68.1

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Fixed

• Fixed errors on the windows artifact build process.

v0.68.0

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Added

• The system ABI is now supported as an option for the --override-abi flag.
• The allowlist_item method and the --allowlist-item flag have been
  included to filter items regardless or their kind.
• Include installers as release artifacts on Github.

Changed

• The Clone implementation for _BindgenUnionField has been changed to pass
  the incorrect_clone_impl_on_copy_type Clippy lint.
• The c_unwind ABI can be used without a feature gate for any Rust target version
  equal to or greater than 1.71.
  This comes as a result of the ABI being stabilised (in Rust 1.71).
• Formatting changes when using prettyplease as a formatter due to a new
  prettyplease version.
• Avoid generating invalid CStr constants when using the --generate-cstr
  option.

Removed

• The extra_assert and extra_assert_eq macros are no longer exported.

Fixed

• Bindgen no longer panics when parsing an objective-C header that includes a
  Rust keyword that cannot be a raw identifier, such as: self, crate,
  super or Self.

v0.66.1

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Removed

• Revert source order sorting (#​2543) due to correctness regressions #​2558.

v0.66.0

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Added

• Added the --generate-cstr CLI flag to generate string constants as &CStr
  instead of &[u8]. (Requires Rust 1.59 or higher.)
• Added the --generate-shell-completions CLI flag to generate completions for
  different shells.
• The --wrap-static-fns option can now wrap va_list functions as variadic functions
  with the experimental ParseCallbacks::wrap_as_variadic_fn method.
• Add target mappings for riscv32imc and riscv32imac.
• Add the ParseCallbacks::field_visibility method to modify field visibility.

Changed

• Non-UTF-8 string constants are now generated as references (&[u8; SIZE])
  instead of arrays ([u8; SIZE]) to match UTF-8 strings.
• Wrappers for static functions that return void no longer contain a return
  statement and only call the static function instead.
• The --wrap-static-fns option no longer emits wrappers for static variadic
  functions.
• Depfiles generated with --depfile or Builder::depfile will now properly
  generate module names and paths that include spaces by escaping them. To make
  the escaping clear and consistent, backslashes are also escaped.
• Updated bitflags dependency to 2.2.1. This changes the API of CodegenConfig.
• Prettyplease formatting is gated by an optional, enabled by default Cargo
  feature when depending on bindgen as a library.
• Items are now parsed in the order they appear in source files. This may result in
  auto-generated _bindgen_* names having a different index.
• Use default visibility for padding fields: Previously, padding fields were
  always public. Now, they follow the default visibility for the type they are
  in.
• Compute visibility of bitfield unit based on actual field visibility: A
  bitfield unit field and its related functions now have their visibility
  determined based on the most private between the default visibility and the
  actual visibility of the bitfields within the unit.

Removed

• Remove redundant Cargo features, which were all implicit:

  • bindgen-cli: env_logger and log removed in favor of logging
  • bindgen (lib):
    • log removed in favor of logging
    • which removed in favor of which-logging
    • annotate-snippets removed in favor of experimental

• Prettyplease is available as a Formatter variant now.

v0.65.1

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Fixed

• The Builder::rustfmt_bindings method was added back and tagged as
  deprecated instead of being removed.
• Broken documentation links were fixed.

v0.65.0

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Added

• Added the Builder::default_visibility method and the
  --default-visibility flag to set the default visibility of fields. (#​2338)
• Added the --formatter CLI flag with the values none, rustfmt and
  prettyplease to select which tool will be used to format the bindings. The
  default value is rustfmt. (#​2453)
• Added the Builder::formatter method and the Formatter type to select
  which tool will be used to format the bindings. (#​2453)
• Added the Builder::emit_diagnostics method and the --emit-diagnostics
  flag to enable emission of diagnostic messages under the experimental
  feature. (#​2436)
• Added support for the "efiapi" calling convention (#​2490).
• Added the ParseCallbacks::read_env_var method which runs everytime
  bindgen reads and environment variable. (#​2400)
• Added the ParseCallbacks::generated_link_name_override method which allow
  overriding the link name of items. (#​2425)
• Add support for C enums when generating code while using the
  --wrap-static-fns feature. (#​2415)

Changed

• Static functions with no arguments use void as their single argument
  instead of having no arguments when the --wrap-static-fns flag is used.
  (#​2443)
• The source file generated when the --wrap-static-fns flag is enabled now
  contains #include directives with all the input headers and all the source
  code added with the header_contents method. (#​2447)
• The source file generated when the --wrap-static-fns flag no longer uses
  asm labeling and the link name of static wrapper functions is allowed to
  be mangled. (#​2448)
• The documentation of the generated type aliases now matches the comments
  of their typedef counterparts instead of using the comments of the aliased
  types. (#​2463)
• The Builder::rustfmt_bindings methods and the --no-rustfmt-bindings flag
  are now deprecated in favor of the formatter API. (#​2453)

Removed

• The following deprecated flags were removed: --use-msvc-mangling,
  --rustfmt-bindings and --size_t-is-usize. (#​2408)
• The Bindings::emit_warnings and Bindings::warnings methods were removed
  in favor of --emit-diagnostics. (#​2436)
• Bindgen no longer generates C string constants that cannot be represented as
  byte slices. (#​2487)

v0.64.0

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Added

• Added a new set of flags --with-derive-custom,
  --with-derive-custom-struct, --with-derive-custom-enum and
  --with-derive-custom-enum to add custom derives from the CLI.
• Added the --experimental flag on bindgen-cli and the experimental
  feature on bindgen to gate experimental features whose implementation is
  incomplete or are prone to change in a non-backwards compatible manner.
• Added a new set of flags and their equivalent builder methods
  --wrap-static-fns, --wrap-static-fns-suffix and --wrap-static-fns-path
  to generate C function wrappers for static or static inline functions.
  This feature is experimental.

Changed

• Fixed name collisions when having a C enum and a typedef with the same
  name.
• The ParseCallbacks::generated_name_override method now receives ItemInfo<'_> as
  argument instead of a &str.
• Updated the clang-sys crate version to 1.4.0 to support clang 15.
• The return type is now omitted in signatures of functions returning void.
• Updated the clap dependency for bindgen-cli to 4.
• Rewrote the bindgen-cli argument parser which could introduce unexpected
  behavior changes.
• The ParseCallbacks::add_derives method now receives DeriveInfo<'_> as
  argument instead of a &str. This type also includes the kind of target type.

v0.63.0

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Added

• new feature: process_comments method to the ParseCallbacks trait to
  handle source code comments.

Changed

• Only wrap unsafe operations in unsafe blocks if the --wrap_unsafe_ops
  option is enabled.
• Replace the name: &str argument for ParseCallbacks::add_derives by
  info: DeriveInfo.
• All the rust targets equal or lower than 1.30 are being deprecated and
  will be removed in the future. If you have a good reason to use any of these
  targets, please report it in the issue tracker.

Removed

• The following deprecated methods and their equivalent CLI arguments were
  removed: whitelist_recursively, hide_type, blacklist_type,
  blacklist_function, blacklist_item, whitelisted_type,
  whitelist_type, whitelist_function, whitelisted_function,
  whitelist_var, whitelisted_var, unstable_rust.

v0.62.0

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Added

• new feature: --override-abi flag to override the ABI used by functions
  matching a regular expression.
• new feature: allow using the C-unwind ABI in --override-abi on nightly
  rust.

Changed

• Regex inputs are sanitized so alternation (a|b) is handled correctly but
  wildcard patterns (*) are now considered invalid. The .* pattern can be
  used as a replacement.
• the ParseCallbackstrait does not require to implement UnwindSafe.
• the Builder::parse_callbacks method no longer overwrites previously added
  callbacks and composes them in a last-to-first manner.
• any generated rust code containing unsafe operations inside unsafe functions
  is wrapped in unsafe blocks now.

Fixed

• Various issues with upcoming clang/libclang versions have been fixed.

v0.61.0

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Released 2022/10/16

Added

• new feature: --sort-semantically flag to sort the output in a predefined
  manner (#​1743).
• new feature: Bindgen::emit_warnings method to emit warnings to stderr in
  build scripts.
• new feature: --newtype-global-enum flag to generate enum variants as
  global constants.
• new feature: --default-non-copy-union-style flag to set the default style
  of code used to generate unions with non-Copy members.
• new feature: --bindgen-wrapper-union flag to mark any union that matches a
  regex and has a non-Copy member to use a bindgen-generated wrapper for its
  fields.
• new feature: --manually-drop-union flag to mark any union that matches a
  regex and has a non-Copy member to use ManuallyDrop.
• new feature: --merge-extern-blocks flag to merge several extern blocks
  that have the same ABI.
• new feature: --no-size_t-is-usize flag to not bind size_t as usize.
• new feature: Builder implements Clone.

Changed

• clap and regex have been updated, new msrv is 1.57.
• The --enable-function-attribute-detection flag is also used to detect
  diverging functions so the generated bindings use ! as the return type.
• The --size_t-is-usize flag is enabled by default.
• Unused type aliases for <stdint.h> types are no longer emitted.
• The blocklist options now can be used to block objective-C methods.
• The core::ffi module is used the sized raw integer types
  instead of std::os::raw if the Rust target version is 1.64 or higher and
  the --use-core flag is enabled.
• The bindgen CLI utility must be installed using cargo install bindgen-cli now.
• Using bindgen as a library no longer pulls clap and any other CLI
  related dependencies.

Fixed

• Const correctness of incomplete arrays has been fixed. (#​2301)
• C++ inline namespaces don't panic. (#​2294)

v0.60.1

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Released 2022/06/06

Fixed

• Fixed stack overflow in generated tests for structs with many fields (#​2219).

v0.60.0

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Released 2022/06/05

Added

• Objective-C structs now derive Debug and Copy to support C and Objective-C structs. (#​2176)
• Allow fully-qualified derives. (#​2156)
• Bindings generation now returns a more suitable error (#​2125)
• --version --verbose now prints clang version (#​2140).
• Experimental vtable generation (#​2145).
• Added an --allowlist-file option (#​2122).
• Support for vectorcall ABI (#​2177).

Fixed

• Fixed lifetimes with Objective-C trait templates. (#​2176)
• Fixed objc imports for non-#[macro_use] use. (#​2176)
• Handle differences between clang and rustc targets for RISCV (#​2137).
• BINDGEN_EXTRA_CLANG_ARGS is respected on the CLI now (#​1723).
• Use common type alias for anonymous enums in consts mode (#​2191)
• Look for #[must_use] in typedefs (#​2206).
• Fixed derive on packed structs (#​2083).
• Fixed warnings on layout tests (#​2203).

Changed

• cexpr, clap, and nom have been updated, new msrv is 1.54.

Removed

• Support for ancient libclang versions has been removed.

v0.59.2

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Released 2021/11/26

• cexpr+env_logger bump.
• Various fixes for C++ crashes / hangs.
• Enums now respect annotations and derives properly in more cases.
• Some more APIs (blocklist-file, etc).
• 'static lifetime is elided when appropriate.

v0.59.1

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Released 2021/07/26

Fixed

• Fixed incorrect bitfield constructors generated for very large bitfields (#​2082).

v0.59.0

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Released 2021/07/20

Added

• Support emitting Makefile-syntax depfiles (#​2026)
• Add a C naming option (#​2045)
• Allow explicit padding (#​2060)
• Add custom derives callback (#​2059)
• Let Rust derive everything but Default for large arrays in 1.47 and later (#​2070).

Fixed

• Constants now have docstrings (#​2027)
• Don't generate bindings for deleted member functions. (#​2044)
• Zero out padding in custom Default trait implementations (#​2051)
• Identify forward declarations in params. (#​2052)
• Add env var EXTRA_CLANG_ARGS_. (#​2031)

Changed

• cexpr and nom have been updated, new msrv is 1.44 (#​2073).

v0.58.1

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Released 2021/04/06

Added

• Re-introduced unintentionally removed
  bindgen::Builder::whitelist_recursively (deprecated in favor of
  bindgen::Builder::allowlist_recursively). [#​2022][]

v0.58.0

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Released 2021/04/03

Added

• Add option to translate enum integer types to native Rust integer types.
  [#​2004][]
• Add callback to check derives for blocklisted types. [#​2007][]
• Add a flag to ensure all symbols are resolved when a library is loaded.
  [#​2013][]
• Add from_library for generated dynamic library structs [#​2011][].

Fixed

• Track union layout more accurately. Fixes an AArch64 bug and makes the
  bindings more portable where unions could return garbage data (#​1984)
• Use original name when checking allowlist for anonymous enum variants. [#​2006][]

Changed

Deprecated

• bindgen::Builder::whitelist_type is deprecated in favor of
  bindgen::Builder::allowlist_type. [#​1812][]

• bindgen::Builder::whitelist_function is deprecated in favor of
  bindgen::Builder::allowlist_function. [#​1812][]

• bindgen::Builder::whitelist_var is deprecated in favor of
  bindgen::Builder::allowlist_var. [#​1812][]

• --whitelist-type is deprecated in favor of
  --allowlist-type. [#​1812][]

• --whitelist-function is deprecated in favor of
  --allowlist-function. [#​1812][]

• --whitelist-var is deprecated in favor of
  --allowlist-var. [#​1812][]

• bindgen::Builder::blacklist_type is deprecated in favor of
  bindgen::Builder::blocklist_type. [#​1812][]

• bindgen::Builder::blacklist_function is deprecated in favor of
  bindgen::Builder::blocklist_function. [#​1812][]

• bindgen::Builder::blacklist_item is deprecated in favor of
  bindgen::Builder::blocklist_item. [#​1812][]

• --blacklist-type is deprecated in favor of
  --blocklist-type. [#​1812][]

• --blacklist-function is deprecated in favor of
  --blocklist-function. [#​1812][]

• --blacklist-item is deprecated in favor of
  --blocklist-item. [#​1812][]

Removed

Fixed

Security

---

v0.57.0

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Released 2021/02/01

Added

• Expose module-raw-lines to the CLI (#​1936)
• Added an option to fit macro constants to smaller types (#​1945)
• Add an option to respect C++ access specifiers on fields (#​1968)

Fixed

• Improved C++ auto-detection (#​1933)
• Fixed layout of bitfields in some edge cases (#​1950)
• Escape the dyn keyword properly (#​1951)
• Use absolute paths for unsaved files passed to clang (#​1857).

v0.56.0

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Released 2020/11/26

Added

• Objective-c bindings generate From<ChildClass> for ParentClass as well as TryFrom<ParentClass> for ChildClass (#​1883).
• Experimental dynamic library support via dynamic_library_name (#​1846).
• Option to disable deriving Default on a per-struct basis (#​1930).

Changed

• Objective-c bindings borrow self rather than take ownership (#​1883).
• Templates and enums now correctly use the same naming scheme as other types
  (#​1891).

Fixed

• Constructors in wasm32 now return a value. (#​1877).
• Fixed objective-c protocol impl blocks for parent classes's protocols (#​1883).

---

v0.55.1

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Released 2020/08/24.

Fixed

• Fixed a regression where anonymous enums referenced by members or such won't
  generate valid Rust code. (#​1882).

---

v0.55.0

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Released 2020/08/23.

Removed

• Support for libclang 3.8 has been removed (#​1830).

Added

• Added options to avoid deriving the Debug trait (#​1858).

• Added options to allow to override the default anonymous field prefix (#​1859).

• Added options to allow to override the default macro integer type from the
  command line (#​1863).

Changed

• Typed anonymous enums now generate better code (#​1850).

• Objective-C bindings are more idiomatic now (#​1847).

• Updated to clang-sys 1.0. Minimum supported rust version is 1.40 as
  a consequence of that change.

Fixed

• Fixed constness of multi-dimensional arrays in some cases (#​1861).

• Fixed wrong target given to clang when compiling with a target which doesn't
  match the target clang expects (#​1870, #​1878).

• Fixed wrong flags being computed for cross-compilation cases where the target
  wasn't explicitly provided via clang flags (#​1872).

Thanks again to all the awesome contributors that sent patches included in this
release!

---

v0.54.1

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Released 2020/07/06.

Yanked: The change in #​1798 is technically breaking, see PR for details.

Added

• Added ParseCallbacks::func_macro to be able to process function-like macros.
  (#​1792).

• Allowed IntKind::Custom to represent paths instead of idents (#​1800).

Changed

• Generated comment now includes the bindgen version, and can be disabled
  (#​1814).

• Various documentation improvements.

Fixed

• Typedefs for types with the same names as rust primitive types compiles
  (#​1798).

• Bindgen dependencies will now get rebuilt when various environment variables
  that affect bindgen change (#​1809, #​1813).

• Various fixes to command_line_flags (#​1816, #​1819, #​1821).

• Functions that start with operator now get properly generated (#​1817).

Thanks to all the awesome contributors that sent patches included in this
release!

---

v0.54.0

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Released 2020/05/21.

Added

• New command line flag to allow disabling untagged unions (#​1789).

Changed

• Various documentation improvements (#​1764, #​1751, #​1757).
• Better Objective-C support (#​1722, #​1750).

Fixed

• Rust method wrappers are not emitted for blacklisted functions (#​1775).
• Fixed function signatures in some edge cases involving Objective-C or
  __stdcall (#​1781).

---

v0.53.3

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Released 2020/05/21.

Note: This release contains the same fixes and additions as 0.54.0, but without
the Objective-C breaking changes

Added

• New command line flag to allow disabling untagged unions (#​1789).

Fixed

• Rust method wrappers are not emitted for blacklisted functions (#​1775).
• Fixed function signatures in some edge cases involving Objective-C or
  __stdcall (#​1781).

---

v0.53.2

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Released 2020/03/10.

Changed

• clang-sys and cexpr have been updated (#​1741 and #​1744).
• Runtime of some commands has been improved (#​1737)
• Some error messages have been improved (#​1734).

---

v0.53.1

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Released 2020/02/03.

Added

• Opt-in to convert size_t to usize again (#​1720).

---

v0.53.0

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Released 2020/02/02.

Added

• Support for wasm_import_module. (#​1691).
• non_exhaustive feature is now stable (#​1698).
• Various objective-C improvements (#​1702).

Changed

• Removed size_t to usize conversion rule (#​1688).

Fixed

• Various unneeded padding fields shouldn't be generated anymore (#​1710).
• Bitfields on packed structs should generate correct layout (#​1717).
• Too large bitfield blocks now generate compiling code (#​1719).

---

v0.52.0

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Released 2019/11/19.

Added

• Added newtype enum style, much like bitfield but without the bitwise ops
  (#​1677).
• Added support for MaybeUninit rather than mem::uninitialized() (#​1666).
• Allowed static linking (#​1620) behind a feature. Note that if you're using
  default-features = false, you probably want to use the "runtime" feature
  to get the same behavior as before.

Changed

• Use c_void from core when --use-core is specified and available (#​1634).
• Various dependencies and features are non-default now (like regex unicode
  features).

Fixed

• Fixed crash when unknown keywords are used before a namespace (#​1678).
• Do not generate implementation for clone for flexible array members (#​1664).
• Fixed #[must_use] support for libclang 9+ (#​1646).
• Fixed BitfieldUnit constructor to handle 64 bit wide bitfields on 32 bit (#​1640).
• Added a ParseCallbacks handler for included files. (#​1637).

v0.51.1

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Released 2019/09/23.

Fixed

• Mismatched Ord and PartialOrd implementations were fixed, which regresses
  bindgen in funny ways when using rustc nightly. Dot releases for a few of the
  previous versions of bindgen will be created with this fix. Also,
  a v0.51.1-oldsyn version was uploaded without the syn update. #​1627

Changed

• Syn and related dependencies have been updated. #​1611

• Switches added to allow less dependencies. In
  particular: It won't pull failure and related dependencies by default, and
  there's a default-on which-rustfmt feature which allows to get rid of
  which altogether. #​1615 / #​1625

• fxhash dependency was switched to rustc-hash. #​1626

v0.51.0

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Released 2019/07/26.

Fixed

• Improve workaround for LLVM stack overflow when evaluating value-dependent
  expressions. #​1591

• Bindgen will properly detect the layout of incomplete arrays. #​1592

• Bindgen will properly detect the layout of empty unions and forward
  declarations of unions. #​1593 and #​1595. Thanks @​pmarks!

Changed

• Refactored the way layout of wchar_t is computed. This is a breaking change
  since IntKind::WChar (exposed in ParseCallbacks) no longer needs a size
  member. #​1596

Added

• Bindgen now reads RUSTFMT in the environment to try to find a suitable
  rustfmt binary. #​1602

v0.50.1

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v0.50.0

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Released 2019/07/01.

Added

• Fixed pointers to Objective C blocks #​1582.

• Various bindgen auto-generated types are now constructible in const fn
  contexts #​1571

• It is possible to generate #[non_exhaustive] enums for rust nightly targets.
  #​1575

• It is possible to avoid building clap now if you're using bindgen as
  a library. #​1581.

v0.49.4

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v0.49.3

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Released 2019/06/25. YANKED

Added

• Various bindgen auto-generated types are now constructible in const fn
  contexts #​1571

• It is possible to generate #[non_exhaustive] enums for rust nightly targets.
  #​1575

• It is possible to avoid building clap now if you're using bindgen as
  a library. #​1581.

v0.49.2

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Released 2019/05/22

Changed

• Bindgen now has an option to generate array arguments as pointer to the array,
  not to the element (so void foo(int arr[2]) would be generated as
  arr: *mut [c_int; 2] rather than arr: *mut c_int. Thanks @​elichai!
  #​1564.

v0.49.1

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Released 2019/05/16

Fixed

• Bindgen will not emit #[link_name] attributes in win32 and macos for
  C functions and constants where it can detect it's not needed (thanks
  @​michaelwoerister!). #​1558

Changed

• Bindgen will no longer use hashbrown internally, and will use fxhash
  and std::HashMap. This is equivalent for newer rustcs since hashbrown
  was merged in libstd, and the performance difference should be close to zero
  for older rustcs.

v0.49.0

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Released 2019/03/27

Added

• BINDGEN_EXTRA_CLANG_ARGS environment variable was added (thanks @​jhwgh1968!). #​1537

Fixed

• Bindgen will properly name parameters inside nested function pointer
  declarations (thanks @​flowbish!). #​1535

Changed

• Derive code was greatly improved by @​jethrogb. #​1540
• Derive analysis now handles trivial types more gracefully. #​1492
• clang-sys was updated by @​eclipseo. [#​1539][]
• bindgen should now get include paths correctly even when --target is
  specified. The detect_include_paths option can be used to opt-out of this
  behavior.

v0.48.1

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Released 2019/03/06

Fixed

• Bindgen will properly lay out types that use reference members. #​1531

---

v0.48.0

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Released 2019/03/04

Changed

• Default rust target was changed to 1.33, which means that bindgen can get much
  more often the layout of structs right. #​1529

Fixed

• Bindgen will output repr(align) just when needed for unions. #​1498

---

v0.47.4

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Released 2020/11/13

Added

• Backported BINDGEN_EXTRA_CLANG_ARGS support per request (#​1910).

---

v0.47.3

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Released 2019/02/25

Changed

• Allowed to build with which 1.0.

---

v0.47.2

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Released 2019/02/22

Fixed

• @​flowbish fixed code generation for nested function prototypes. #​1508
• Some complex C++ constructs no longer panic on code generation #​1513
• Implicit template parameters are now appended to base classes #​1515
• @​flier fixed single-argument block pointers #​1519
• Bindgen won't panic when parsing an undeduced auto type #​1525

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