./lang/rust, Safe, concurrent, practical language

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Branch: CURRENT, Version: 1.43.1nb1, Package name: rust-1.43.1nb1, Maintainer: pkgsrc-users

Rust is a systems programming language focused on three goals: safety,
speed, and concurrency. It maintains these goals without having a
garbage collector, making it a useful language for a number of use cases
other languages aren't good at: embedding in other languages, programs
with specific space and time requirements, and writing low-level code,
like device drivers and operating systems.

It improves on current languages targeting this space by having a number
of compile-time safety checks that produce no runtime overhead, while
eliminating all data races. Rust also aims to achieve "zero-cost
abstractions" even though some of these abstractions feel like those of
a high-level language. Even then, Rust still allows precise control
like a low-level language would.


Required to run:
[www/curl] [security/openssl] [lang/llvm]

Required to build:
[pkgtools/cwrappers] [lang/gcc5] [lang/python37]

Master sites:

SHA1: 0b52e365b5eff1fcc1a7b311ce2b666d2b2710da
RMD160: 074b72f9fe69342c6071ef254b96c32911710260
Filesize: 132905.367 KB

Version history: (Expand)


CVS history: (Expand)


   2020-07-08 16:46:14 by Jonathan Perkin | Files touched by this commit (12)
Log message:
rust: Add support for cross-compiling illumos.

It's not really cross-compiled, it's just a different target name, but is
treated the same way.  Once stabilised and crate support catches up we'll
switch over to it by default from x86_64-sun-solaris.  Until then I'll
build bootstrap kits for both natively.

While here fix up a bunch of obvious pkglint warnings.
   2020-07-07 12:44:02 by Havard Eidnes | Files touched by this commit (2)
Log message:
Upgrade to rust version 1.44.1.

Pkgsrc changes:
 * None.

Upstream changes:

Version 1.44.1 (2020-06-18)
===========================

* [rustfmt accepts rustfmt_skip in cfg_attr again.][73078]
* [Don't hash executable filenames on apple platforms, fixing backtraces.]
  [cargo/8329]
* [Fix crashes when finding backtrace on macOS.][71397]
* [Clippy applies lint levels into different files.][clippy/5356]

[71397]: https://github.com/rust-lang/rust/issues/71397
[73078]: https://github.com/rust-lang/rust/issues/73078
[cargo/8329]: https://github.com/rust-lang/cargo/pull/8329
[clippy/5356]: https://github.com/rust-lang/rust-clippy/issues/5356
   2020-07-06 21:09:29 by Havard Eidnes | Files touched by this commit (2)
Log message:
Based on suggestion, add the "cross.mk" file which contains
settings which may be tweaked to do a cross-build of rust.
Include it from the main Makefile.
   2020-07-06 18:12:14 by Havard Eidnes | Files touched by this commit (1)
Log message:
On second thought, put back the settings for powerpc and earmv7hf,
as they are needed when building natively on those platforms.
   2020-07-06 18:03:00 by Havard Eidnes | Files touched by this commit (1)
Log message:
Remove more of the cross-compile settings now consigned to my
own private cross.mk file.
   2020-07-06 15:56:32 by Havard Eidnes | Files touched by this commit (6) | Package updated
Log message:
Re-update rust to version 1.44.0.

Pkgsrc changes:
 * Remove the clutter caused by the cross-compile setup from Makefile
   (Now consigned to my own private cross.mk file.)
 * Remove a couple of patches which are now integrated upstream.
 * Minor adjustments to a couple of other patches.
 * Adjust cargo checksums after upstream upgrades.
 * Belatedly bump the curl dependency
 * If doing a "dist" build, unset DESTDIR during the build phase,
   to work around a mysterious build bug deep in the bowels of llvm,
   causing llvm tools to be installed to a directory unexpecetd by
   the rest of the rust build, ref.
   https://github.com/rust-lang/rust/issues/73132
   A "dist" build is not expected to be followed by an "install".
 * Bump nearly all bootstraps to 1.43.1; NetBSD earmv7hf bootstrap
   bumped to 1.44.0, as that one now finally builds and works.

Upstream changes:

Version 1.44.0 (2020-06-04)
==========================

Language
--------
- [You can now use `async/.await` with `#[no_std]` enabled.][69033]
- [Added the `unused_braces` lint.][70081]

**Syntax-only changes**

- [Expansion-driven outline module parsing][69838]
```rust
#[cfg(FALSE)]
mod foo {
    mod bar {
        mod baz; // `foo/bar/baz.rs` doesn't exist, but no error!
    }
}
```

These are still rejected semantically, so you will likely receive an error but
these changes can be seen and parsed by macros and conditional compilation.

Compiler
--------
- [Rustc now respects the `-C codegen-units` flag in incremental mode.][70156]
  Additionally when in incremental mode rustc defaults to 256 codegen units.
- [Refactored `catch_unwind`, to have zero-cost unless unwinding is enabled and
  a panic is thrown.][67502]
- [Added tier 3\* support for the `aarch64-unknown-none` and
  `aarch64-unknown-none-softfloat` targets.][68334]
- [Added tier 3 support for `arm64-apple-tvos` and
  `x86_64-apple-tvos` targets.][68191]

Libraries
---------
- [Special cased `vec![]` to map directly to `Vec::new()`.][70632] This allows
  `vec![]` to be able to be used in `const` contexts.
- [`convert::Infallible` now implements `Hash`.][70281]
- [`OsString` now implements `DerefMut` and `IndexMut` returning
  a `&mut OsStr`.][70048]
- [Unicode 13 is now supported.][69929]
- [`String` now implements `From<&mut str>`.][69661]
- [`IoSlice` now implements `Copy`.][69403]
- [`Vec<T>` now implements `From<[T; N]>`.][68692] Where `N` is less \ 
than 32.
- [`proc_macro::LexError` now implements `fmt::Display` and `Error`.][68899]
- [`from_le_bytes`, `to_le_bytes`, `from_be_bytes`, `to_be_bytes`,
  `from_ne_bytes`, and `to_ne_bytes` methods are now `const` for all
  integer types.][69373]

Stabilized APIs
---------------
- [`PathBuf::with_capacity`]
- [`PathBuf::capacity`]
- [`PathBuf::clear`]
- [`PathBuf::reserve`]
- [`PathBuf::reserve_exact`]
- [`PathBuf::shrink_to_fit`]
- [`f32::to_int_unchecked`]
- [`f64::to_int_unchecked`]
- [`Layout::align_to`]
- [`Layout::pad_to_align`]
- [`Layout::array`]
- [`Layout::extend`]

Cargo
-----
- [Added the `cargo tree` command which will print a tree graph of
  your dependencies.][cargo/8062] E.g.
  ```
    mdbook v0.3.2 (/Users/src/rust/mdbook)
  +-- ammonia v3.0.0
  |   +-- html5ever v0.24.0
  |   |   +-- log v0.4.8
  |   |   |   +-- cfg-if v0.1.9
  |   |   +-- mac v0.1.1
  |   |   +-- markup5ever v0.9.0
  |   |       +-- log v0.4.8 (*)
  |   |       +-- phf v0.7.24
  |   |       |   +-- phf_shared v0.7.24
  |   |       |       +-- siphasher v0.2.3
  |   |       |       +-- unicase v1.4.2
  |   |       |           [build-dependencies]
  |   |       |           +-- version_check v0.1.5
  ...
  ```
  You can also display dependencies on multiple versions of the same crate with
  `cargo tree -d` (short for `cargo tree --duplicates`).

Misc
----
- [Rustdoc now allows you to specify `--crate-version` to have rustdoc include
  the version in the sidebar.][69494]

Compatibility Notes
-------------------
- [Rustc now correctly generates static libraries on Windows GNU targets with
  the `.a` extension, rather than the previous `.lib`.][70937]
- [Removed the `-C no_integrated_as` flag from rustc.][70345]
- [The `file_name` property in JSON output of macro errors now points the actual
  source file rather than the previous format of `<NAME macros>`.][70969]
  **Note:** this may not point a file that actually exists on the user's system.
- [The minimum required external LLVM version has been bumped to LLVM 8.][71147]
- [`mem::{zeroed, uninitialised}` will now panic when used with types that do
  not allow zero initialization such as `NonZeroU8`.][66059] This was
  previously a warning.
- [In 1.45.0 (the next release) converting a `f64` to `u32` using the `as`
  operator has been defined as a saturating operation.][71269] This was
  previously undefined behaviour, you can use the `{f64, f32}::to_int_unchecked`
  methods to continue using the current behaviour which may desirable in rare
  performance sensitive situations.

Internal Only
-------------
These changes provide no direct user facing benefits, but represent significant
improvements to the internals and overall performance of rustc and
related tools.

- [dep_graph Avoid allocating a set on when the number reads are small.][69778]
- [Replace big JS dict with JSON parsing.][71250]

[69373]: https://github.com/rust-lang/rust/pull/69373/
[66059]: https://github.com/rust-lang/rust/pull/66059/
[68191]: https://github.com/rust-lang/rust/pull/68191/
[68899]: https://github.com/rust-lang/rust/pull/68899/
[71147]: https://github.com/rust-lang/rust/pull/71147/
[71250]: https://github.com/rust-lang/rust/pull/71250/
[70937]: https://github.com/rust-lang/rust/pull/70937/
[70969]: https://github.com/rust-lang/rust/pull/70969/
[70632]: https://github.com/rust-lang/rust/pull/70632/
[70281]: https://github.com/rust-lang/rust/pull/70281/
[70345]: https://github.com/rust-lang/rust/pull/70345/
[70048]: https://github.com/rust-lang/rust/pull/70048/
[70081]: https://github.com/rust-lang/rust/pull/70081/
[70156]: https://github.com/rust-lang/rust/pull/70156/
[71269]: https://github.com/rust-lang/rust/pull/71269/
[69838]: https://github.com/rust-lang/rust/pull/69838/
[69929]: https://github.com/rust-lang/rust/pull/69929/
[69661]: https://github.com/rust-lang/rust/pull/69661/
[69778]: https://github.com/rust-lang/rust/pull/69778/
[69494]: https://github.com/rust-lang/rust/pull/69494/
[69403]: https://github.com/rust-lang/rust/pull/69403/
[69033]: https://github.com/rust-lang/rust/pull/69033/
[68692]: https://github.com/rust-lang/rust/pull/68692/
[68334]: https://github.com/rust-lang/rust/pull/68334/
[67502]: https://github.com/rust-lang/rust/pull/67502/
[cargo/8062]: https://github.com/rust-lang/cargo/pull/8062/
[`PathBuf::with_capacity`]: \ 
https://doc.rust-lang.org/std/path/stru … h_capacity
[`PathBuf::capacity`]: \ 
https://doc.rust-lang.org/std/path/stru … d.capacity
[`PathBuf::clear`]: \ 
https://doc.rust-lang.org/std/path/stru … thod.clear
[`PathBuf::reserve`]: \ 
https://doc.rust-lang.org/std/path/stru … od.reserve
[`PathBuf::reserve_exact`]: \ 
https://doc.rust-lang.org/std/path/stru … erve_exact
[`PathBuf::shrink_to_fit`]: \ 
https://doc.rust-lang.org/std/path/stru … ink_to_fit
[`f32::to_int_unchecked`]: \ 
https://doc.rust-lang.org/std/primitive … _unchecked
[`f64::to_int_unchecked`]: \ 
https://doc.rust-lang.org/std/primitive … _unchecked
[`Layout::align_to`]: \ 
https://doc.rust-lang.org/std/alloc/str … d.align_to
[`Layout::pad_to_align`]: \ 
https://doc.rust-lang.org/std/alloc/str … d_to_align
[`Layout::array`]: \ 
https://doc.rust-lang.org/std/alloc/str … thod.array
[`Layout::extend`]: \ 
https://doc.rust-lang.org/std/alloc/str … hod.extend
   2020-06-24 11:46:26 by Nia Alarie | Files touched by this commit (2)
Log message:
rust: uses -std=c++14
   2020-06-18 17:00:21 by Greg Troxel | Files touched by this commit (1)
Log message:
rust/platform.mk: Note PR about earmv7, and requirement for PR links

Following discussion on tech-net, note that disabling rust on a
platform where it ought to work requires a link to an open PR.

Add a link to the PR about NetBSD/earmv7hf.