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Bumps [libc](https://github.com/rust-lang/libc) from 0.2.177 to 0.2.178. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/rust-lang/libc/releases">libc's releases</a>.</em></p> <blockquote> <h2>0.2.178</h2> <h3>Added</h3> <ul> <li>BSD: Add <code>issetugid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4744">#4744</a>)</li> <li>Cygwin: Add missing utmp/x.h, grp.h, and stdio.h interfaces (<a href="https://redirect.github.com/rust-lang/libc/pull/4827">#4827</a>)</li> <li>Linux s390x musl: Add <code>__psw_t</code>/<code>fprefset_t</code>/<code>*context_t</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4726">#4726</a>)</li> <li>Linux, Android: Add definition for IUCLC (<a href="https://redirect.github.com/rust-lang/libc/pull/4846">#4846</a>)</li> <li>Linux, FreeBSD: Add <code>AT_HWCAP{3,4}</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4734">#4734</a>)</li> <li>Linux: Add definitions from linux/can/bcm.h (<a href="https://redirect.github.com/rust-lang/libc/pull/4683">#4683</a>)</li> <li>Linux: Add syscalls 451-469 for m68k (<a href="https://redirect.github.com/rust-lang/libc/pull/4850">#4850</a>)</li> <li>Linux: PowerPC: Add 'ucontext.h' definitions (<a href="https://redirect.github.com/rust-lang/libc/pull/4696">#4696</a>)</li> <li>NetBSD: Define <code>eventfd</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4830">#4830</a>)</li> <li>Newlib: Add missing constants from <code>unistd.h</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4811">#4811</a>)</li> <li>QNX NTO: Add <code>cfmakeraw</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4704">#4704</a>)</li> <li>QNX NTO: Add <code>cfsetspeed</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4704">#4704</a>)</li> <li>Redox: Add <code>getresgid</code> and <code>getresuid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4752">#4752</a>)</li> <li>Redox: Add <code>setresgid</code> and <code>setresuid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4752">#4752</a>)</li> <li>VxWorks: Add definitions from <code>select.h</code>, <code>stat.h</code>, <code>poll.h</code>, <code>ttycom.h</code>, <code>utsname.h</code>, <code>resource.h</code>, <code>mman.h</code>, <code>udp.h</code>, <code>in.h</code>, <code>in6.h</code>, <code>if.h</code>, <code>fnmatch.h</code>, and <code>sioLibCommon.h</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4781">#4781</a>)</li> <li>VxWorks: Add missing defines/functions needed by rust stdlib (<a href="https://redirect.github.com/rust-lang/libc/pull/4779">#4779</a>)</li> <li>WASI: Add more definitions for libstd (<a href="https://redirect.github.com/rust-lang/libc/pull/4747">#4747</a>)</li> </ul> <h3>Deprecated:</h3> <ul> <li>Apple: Deprecate <code>TIOCREMOTE</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4764">#4764</a>)</li> </ul> <h3>Fixed:</h3> <p>Note that there were a large number of fixes on NetBSD for this <code>libc</code> release, some of which include minor breakage.</p> <ul> <li>AIX: Change errno <code>EWOULDBLOCK</code> to make it an alias of <code>EAGAIN</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4790">#4790</a>)</li> <li>AIX: Resolve function comparison and <code>unnecessary_transmutes</code> warnings (<a href="https://redirect.github.com/rust-lang/libc/pull/4780">#4780</a>)</li> <li>Apple: Correct the value of <code>SF_SETTABLE</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4764">#4764</a>)</li> <li>DragonflyBSD: Fix the type of <code>mcontext_t.mc_fpregs</code> (<a href="">#</a>)</li> <li>EspIDF: Fix the duplicate definition of <code>gethostname</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4773">#4773</a>)</li> <li>L4Re: Update available pthread API (<a href="https://redirect.github.com/rust-lang/libc/pull/4836">#4836</a>)</li> <li>Linux: Correct the value of <code>NFT_MSG_MAX</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4761">#4761</a>)</li> <li>Linux: Remove incorrect <code>repr(align(8))</code> for <code>canxl_frame</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4760">#4760</a>)</li> <li>Make <code>eventfd</code> argument names match OS docs/headers (<a href="https://redirect.github.com/rust-lang/libc/pull/4830">#4830</a>)</li> <li>NetBSD: Account for upstream changes to ptrace with LWP (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct <code>ipc_perm</code>, split from OpenBSD as <code>ipc.rs</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct a number of symbol link names (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct the type of <code>kinfo_vmentry.kve_path</code> (<a href="">#</a>)</li> <li>NetBSD: Fix <code>uucred.cr_ngroups</code> from <code>int</code> to <code>short</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the type of <code>kevent.udata</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the type of <code>mcontext_t.__fpregs</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the value of <code>PT_SUSPEND</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the values of FNM_* constants (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Increase the size of <code>sockaddr_dl.sdl_data</code> from 12 to 24 (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Introduce <code>if_.rs</code>, fix the definition of <code>ifreq</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Introduce <code>time.rs</code>, fix the values of <code>CLOCK_*_CPUTIME_ID</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/rust-lang/libc/blob/0.2.178/CHANGELOG.md">libc's changelog</a>.</em></p> <blockquote> <h2><a href="https://github.com/rust-lang/libc/compare/0.2.177...0.2.178">0.2.178</a> - 2025-12-01</h2> <h3>Added</h3> <ul> <li>BSD: Add <code>issetugid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4744">#4744</a>)</li> <li>Cygwin: Add missing utmp/x.h, grp.h, and stdio.h interfaces (<a href="https://redirect.github.com/rust-lang/libc/pull/4827">#4827</a>)</li> <li>Linux s390x musl: Add <code>__psw_t</code>/<code>fprefset_t</code>/<code>*context_t</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4726">#4726</a>)</li> <li>Linux, Android: Add definition for IUCLC (<a href="https://redirect.github.com/rust-lang/libc/pull/4846">#4846</a>)</li> <li>Linux, FreeBSD: Add <code>AT_HWCAP{3,4}</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4734">#4734</a>)</li> <li>Linux: Add definitions from linux/can/bcm.h (<a href="https://redirect.github.com/rust-lang/libc/pull/4683">#4683</a>)</li> <li>Linux: Add syscalls 451-469 for m68k (<a href="https://redirect.github.com/rust-lang/libc/pull/4850">#4850</a>)</li> <li>Linux: PowerPC: Add 'ucontext.h' definitions (<a href="https://redirect.github.com/rust-lang/libc/pull/4696">#4696</a>)</li> <li>NetBSD: Define <code>eventfd</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4830">#4830</a>)</li> <li>Newlib: Add missing constants from <code>unistd.h</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4811">#4811</a>)</li> <li>QNX NTO: Add <code>cfmakeraw</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4704">#4704</a>)</li> <li>QNX NTO: Add <code>cfsetspeed</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4704">#4704</a>)</li> <li>Redox: Add <code>getresgid</code> and <code>getresuid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4752">#4752</a>)</li> <li>Redox: Add <code>setresgid</code> and <code>setresuid</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4752">#4752</a>)</li> <li>VxWorks: Add definitions from <code>select.h</code>, <code>stat.h</code>, <code>poll.h</code>, <code>ttycom.h</code>, <code>utsname.h</code>, <code>resource.h</code>, <code>mman.h</code>, <code>udp.h</code>, <code>in.h</code>, <code>in6.h</code>, <code>if.h</code>, <code>fnmatch.h</code>, and <code>sioLibCommon.h</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4781">#4781</a>)</li> <li>VxWorks: Add missing defines/functions needed by rust stdlib (<a href="https://redirect.github.com/rust-lang/libc/pull/4779">#4779</a>)</li> <li>WASI: Add more definitions for libstd (<a href="https://redirect.github.com/rust-lang/libc/pull/4747">#4747</a>)</li> </ul> <h3>Deprecated:</h3> <ul> <li>Apple: Deprecate <code>TIOCREMOTE</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4764">#4764</a>)</li> </ul> <h3>Fixed:</h3> <p>Note that there were a large number of fixes on NetBSD for this <code>libc</code> release, some of which include minor breakage.</p> <ul> <li>AIX: Change errno <code>EWOULDBLOCK</code> to make it an alias of <code>EAGAIN</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4790">#4790</a>)</li> <li>AIX: Resolve function comparison and <code>unnecessary_transmutes</code> warnings (<a href="https://redirect.github.com/rust-lang/libc/pull/4780">#4780</a>)</li> <li>Apple: Correct the value of <code>SF_SETTABLE</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4764">#4764</a>)</li> <li>DragonflyBSD: Fix the type of <code>mcontext_t.mc_fpregs</code> (<a href="">#</a>)</li> <li>EspIDF: Fix the duplicate definition of <code>gethostname</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4773">#4773</a>)</li> <li>L4Re: Update available pthread API (<a href="https://redirect.github.com/rust-lang/libc/pull/4836">#4836</a>)</li> <li>Linux: Correct the value of <code>NFT_MSG_MAX</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4761">#4761</a>)</li> <li>Linux: Remove incorrect <code>repr(align(8))</code> for <code>canxl_frame</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4760">#4760</a>)</li> <li>Make <code>eventfd</code> argument names match OS docs/headers (<a href="https://redirect.github.com/rust-lang/libc/pull/4830">#4830</a>)</li> <li>NetBSD: Account for upstream changes to ptrace with LWP (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct <code>ipc_perm</code>, split from OpenBSD as <code>ipc.rs</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct a number of symbol link names (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Correct the type of <code>kinfo_vmentry.kve_path</code> (<a href="">#</a>)</li> <li>NetBSD: Fix <code>uucred.cr_ngroups</code> from <code>int</code> to <code>short</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the type of <code>kevent.udata</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the type of <code>mcontext_t.__fpregs</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the value of <code>PT_SUSPEND</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Fix the values of FNM_* constants (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Increase the size of <code>sockaddr_dl.sdl_data</code> from 12 to 24 (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> <li>NetBSD: Introduce <code>if_.rs</code>, fix the definition of <code>ifreq</code> (<a href="https://redirect.github.com/rust-lang/libc/pull/4782">#4782</a>)</li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/rust-lang/libc/commit/2b95cbe1cecd28ab03d689b34c2696d70b65ff27"><code>2b95cbe</code></a> chore: release libc 0.2.178</li> <li><a href="https://github.com/rust-lang/libc/commit/bc25dfca2960fcd6bde9636e9fe9c87295765a5e"><code>bc25dfc</code></a> NetBSD: Only skip <code>sockaddr_dl</code> on NetBSD9</li> <li><a href="https://github.com/rust-lang/libc/commit/887133e45ee709ff941f4d07f1069489a81aa531"><code>887133e</code></a> add syscalls 451-469 for m68k linux</li> <li><a href="https://github.com/rust-lang/libc/commit/3cfeee46c2f28121771747f2e0bf9b5432a0eb29"><code>3cfeee4</code></a> build(deps): bump actions/checkout from 5 to 6</li> <li><a href="https://github.com/rust-lang/libc/commit/999b4203ee3c450df6f6ef781fadd81fe51e7e78"><code>999b420</code></a> linux, android: Add definition for IUCLC</li> <li><a href="https://github.com/rust-lang/libc/commit/ae6df796e2c918726ffafb7878b621ffad6a2bb7"><code>ae6df79</code></a> Define eventfd on NetBSD</li> <li><a href="https://github.com/rust-lang/libc/commit/03b7438253fc4f111bf7ef3ca44902538dcce948"><code>03b7438</code></a> Make eventfd argument names match OS docs/headers</li> <li><a href="https://github.com/rust-lang/libc/commit/9ba7c90662818c9bd6733899e4718816fe8b6394"><code>9ba7c90</code></a> cygwin: Add missing utmp/x.h, grp.h, and stdio.h interfaces</li> <li><a href="https://github.com/rust-lang/libc/commit/5d284b0afd113ea6e92a5c7d2c1c93d1b7a60d07"><code>5d284b0</code></a> Fix test for cygwin</li> <li><a href="https://github.com/rust-lang/libc/commit/7516d382af0715deb7868f88bef4b3d36412062a"><code>7516d38</code></a> ci: Update <code>style.py</code> to work with visibility on enums</li> <li>Additional commits viewable in <a href="https://github.com/rust-lang/libc/compare/0.2.177...0.2.178">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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bdwgc-rust
GlobalAlloc implementation for bdwgc, the conservative garbage collector.
This crate is for use cases in which developers need to integrate bdwgc into their programs written in Rust (e.g. writing a runtime library in Rust for their own programming language whose GC is done by bdwgc.)
Usage
See examples directory.
By default bdwgc is built with autotools. To build with cmake, enable the cmake feature:
cargo build --no-default-features --features cmake