subprojects: add rustix

Version 0.38.31 available:

   - AOSP
   - Fedora (https://bodhi.fedoraproject.org/updates/?packages=rust-rustix)
   - Debian (https://tracker.debian.org/pkg/rust-rustix)

Acked-by: Aaron Ruby <aruby@qnx.com>
Reviewed-by: @LingMan
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35210>

subprojects/packagefiles/rustix/meson.build

@@ -0,0 +1,44 @@
+# Copyright © 2025 Google
+# SPDX-License-Identifier: MIT
+
+project(
+  'rustix',
+  'rust',
+  version : '0.38.31',
+  license : 'Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT',
+)
+
+errno = subproject('errno').get_variable('lib')
+libc = subproject('libc').get_variable('lib')
+linux_raw_sys = subproject('linux-raw-sys').get_variable('lib')
+bitflags = subproject('bitflags').get_variable('lib')
+
+rustix_args = []
+if host_machine.system() == 'linux' or host_machine.system() == 'android'
+  rustix_args += [
+  '--cfg', 'linux_raw',
+  '--cfg', 'linux_kernel',
+  '--cfg', 'feature="std"',
+  '--cfg', 'feature="alloc"',
+  '--cfg', 'feature="event"',
+  '--cfg', 'feature="fs"',
+  '--cfg', 'feature="mm"',
+  '--cfg', 'feature="net"',
+  '--cfg', 'feature="param"',
+  '--cfg', 'feature="pipe"',
+]
+endif
+
+lib = static_library(
+  'rustix',
+  'src/lib.rs',
+  override_options : ['rust_std=2021', 'build.rust_std=2021'],
+  link_with : [errno, libc, linux_raw_sys, bitflags],
+  rust_abi : 'rust',
+  native : true,
+  rust_args: rustix_args,
+)
+
+dep_rustix = declare_dependency(
+  link_with : [lib, errno, libc, linux_raw_sys, bitflags]
+)

subprojects/rustix.wrap

@@ -0,0 +1,6 @@
+[wrap-file]
+directory = rustix-0.38.31
+source_url = https://crates.io/api/v1/crates/rustix/0.38.31/download
+source_filename = rustix-0.38.31.tar.gz
+source_hash = 6ea3e1a662af26cd7a3ba09c0297a31af215563ecf42817c98df621387f4e949
+patch_directory = rustix