tgross35 · Oct 1, 2026 · Sep 20, 2026 · Oct 1, 2026 · Oct 1, 2026 · Sep 29, 2026
diff --git a/ci/verify-build.py b/ci/verify-build.py
@@ -192,8 +192,7 @@ class TargetResult:
     Target("powerpc-unknown-netbsd", dist=False),
     Target("powerpc-wrs-vxworks", dist=False),
     Target("powerpc-wrs-vxworks-spe", dist=False),
-    # FIXME(rust-lang/rust#162979)
-    # Target("powerpc64-ibm-aix", dist=False),
+    Target("powerpc64-ibm-aix", dist=False),
     Target("powerpc64-unknown-freebsd", dist=False),
     Target("powerpc64-unknown-linux-gnuelfv2", dist=False),
     Target("powerpc64-wrs-vxworks", dist=False),

diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
@@ -385,7 +385,6 @@ IMAXBEL
 INHERIT_COPY
 INHERIT_NONE
 INHERIT_SHARE
-INHERIT_ZERO
 INIT_PROCESS
 IOV_MAX
 IPC_CREAT

diff --git a/libc-test/semver/macos.txt b/libc-test/semver/macos.txt
@@ -202,6 +202,10 @@ mach_timebase_info
 mach_timebase_info_data_t
 mach_vm_map
 memmem
+posix_spawn_file_actions_addchdir
+posix_spawn_file_actions_addchdir_np
+posix_spawn_file_actions_addfchdir
+posix_spawn_file_actions_addfchdir_np
 proc_bsdinfo
 proc_bsdshortinfo
 proc_kmsgbuf

diff --git a/src/new/glibc/sysdeps/unix/linux/bits/statvfs.rs b/src/new/glibc/sysdeps/unix/linux/bits/statvfs.rs
@@ -2,7 +2,7 @@
 
 use crate::prelude::*;
 
-s! {
+s2! {
     pub struct statvfs {
         pub f_bsize: c_ulong,
         pub f_frsize: c_ulong,

diff --git a/src/new/netbsd/sys/statvfs.rs b/src/new/netbsd/sys/statvfs.rs
@@ -7,7 +7,7 @@ use crate::prelude::*;
 const _VFS_NAMELEN: usize = 32;
 const _VFS_MNAMELEN: usize = 1024;
 
-s! {
+s2! {
     pub struct statvfs {
         pub f_flag: c_ulong,
         pub f_bsize: c_ulong,
@@ -38,8 +38,11 @@ s! {
         // This type is updated in a future version
         f_spare: Padding<[u32; 4]>,
 
+        #[custom_default([0; _VFS_NAMELEN])]
         pub f_fstypename: [c_char; _VFS_NAMELEN],
+        #[custom_default([0; _VFS_MNAMELEN])]
         pub f_mntonname: [c_char; _VFS_MNAMELEN],
+        #[custom_default([0; _VFS_MNAMELEN])]
         pub f_mntfromname: [c_char; _VFS_MNAMELEN],
         // Added in NetBSD10
         // pub f_mntfromlabel: [c_char; _VFS_MNAMELEN],

diff --git a/src/unix/bsd/apple/b64/mod.rs b/src/unix/bsd/apple/b64/mod.rs
@@ -3,7 +3,7 @@
 use crate::prelude::*;
 
 s2! {
-    #[exhaustive] // FIXME(exhaustive): review for 1.0
+    #[exhaustive] // unlikely to change
     pub struct timeval32 {
         pub tv_sec: i32,
         pub tv_usec: i32,

diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
@@ -5141,6 +5141,26 @@ extern "C" {
         fd: c_int,
         newfd: c_int,
     ) -> c_int;
+    #[cfg(target_os = "macos")]
+    pub fn posix_spawn_file_actions_addchdir_np(
+        actions: *mut posix_spawn_file_actions_t,
+        path: *const c_char,
+    ) -> c_int;
+    #[cfg(target_os = "macos")]
+    pub fn posix_spawn_file_actions_addfchdir_np(
+        actions: *mut posix_spawn_file_actions_t,
+        fd: c_int,
+    ) -> c_int;
+    #[cfg(target_os = "macos")]
+    pub fn posix_spawn_file_actions_addchdir(
+        actions: *mut posix_spawn_file_actions_t,
+        path: *const c_char,
+    ) -> c_int;
+    #[cfg(target_os = "macos")]
+    pub fn posix_spawn_file_actions_addfchdir(
+        actions: *mut posix_spawn_file_actions_t,
+        fd: c_int,
+    ) -> c_int;
     pub fn uname(buf: *mut crate::utsname) -> c_int;
 
     pub fn connectx(

diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -149,7 +149,7 @@ s! {
         pub st_ctime_nsec: c_long,
         pub st_size: off_t,
         pub st_blocks: i64,
-        pub __old_st_blksize: u32,
+        __old_st_blksize: u32,
         pub st_flags: u32,
         pub st_gen: u32,
         pub st_lspare: i32,

diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -2291,6 +2291,8 @@ pub const NOTE_ABSTIME: u32 = 0x00000010;
 
 pub const MADV_PROTECT: c_int = 10;
 
+pub const INHERIT_ZERO: c_int = 3;
+
 pub const CTL_SYSCTL: c_int = 0;
 pub const CTL_KERN: c_int = 1;
 pub const CTL_VM: c_int = 2;

diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
@@ -583,7 +583,6 @@ pub const MAP_FAILED: *mut c_void = !0 as *mut c_void;
 pub const INHERIT_SHARE: c_int = 0;
 pub const INHERIT_COPY: c_int = 1;
 pub const INHERIT_NONE: c_int = 2;
-pub const INHERIT_ZERO: c_int = 3;
 
 pub const MCL_CURRENT: c_int = 0x0001;
 pub const MCL_FUTURE: c_int = 0x0002;

diff --git a/src/unix/cygwin/mod.rs b/src/unix/cygwin/mod.rs
@@ -1658,12 +1658,12 @@ pub const _IOLBF: c_int = 1;
 pub const _IONBF: c_int = 2;
 pub const BUFSIZ: c_int = 1024;
 
-pub const POSIX_SPAWN_RESETIDS: c_int = 0x01;
-pub const POSIX_SPAWN_SETPGROUP: c_int = 0x02;
-pub const POSIX_SPAWN_SETSCHEDPARAM: c_int = 0x04;
-pub const POSIX_SPAWN_SETSCHEDULER: c_int = 0x08;
-pub const POSIX_SPAWN_SETSIGDEF: c_int = 0x10;
-pub const POSIX_SPAWN_SETSIGMASK: c_int = 0x20;
+pub const POSIX_SPAWN_RESETIDS: c_short = 0x01;
+pub const POSIX_SPAWN_SETPGROUP: c_short = 0x02;
+pub const POSIX_SPAWN_SETSCHEDPARAM: c_short = 0x04;
+pub const POSIX_SPAWN_SETSCHEDULER: c_short = 0x08;
+pub const POSIX_SPAWN_SETSIGDEF: c_short = 0x10;
+pub const POSIX_SPAWN_SETSIGMASK: c_short = 0x20;
 
 pub const POSIX_FADV_NORMAL: c_int = 0;
 pub const POSIX_FADV_SEQUENTIAL: c_int = 1;

diff --git a/src/unix/linux_like/l4re/uclibc/aarch64/mod.rs b/src/unix/linux_like/l4re/uclibc/aarch64/mod.rs
@@ -42,8 +42,8 @@ s! {
 
     pub struct stat64 {
         pub st_dev: c_ulong,
-        pub __pad1: c_uint,
-        pub __st_ino: crate::ino_t,
+        __pad1: Padding<c_uint>,
+        __st_ino: crate::ino_t,
         pub st_mode: crate::mode_t,
         pub st_nlink: nlink_t,
         pub st_uid: crate::uid_t,

diff --git a/src/unix/linux_like/linux/gnu/b32/m68k/mod.rs b/src/unix/linux_like/linux/gnu/b32/m68k/mod.rs
@@ -56,7 +56,7 @@ s! {
     pub struct stat64 {
         pub st_dev: crate::dev_t,
         __pad1: Padding<c_ushort>,
-        pub __st_ino: crate::ino_t,
+        __st_ino: crate::ino_t,
         pub st_mode: crate::mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_uid: crate::uid_t,

diff --git a/src/unix/linux_like/linux/uclibc/arm/mod.rs b/src/unix/linux_like/linux/uclibc/arm/mod.rs
@@ -63,8 +63,8 @@ s! {
 
     pub struct stat64 {
         pub st_dev: c_ulonglong,
-        pub __pad1: c_uint,
-        pub __st_ino: crate::ino_t,
+        __pad1: Padding<c_uint>,
+        __st_ino: crate::ino_t,
         pub st_mode: crate::mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_uid: crate::uid_t,

diff --git a/src/unix/nto/mod.rs b/src/unix/nto/mod.rs
@@ -111,9 +111,9 @@ s! {
         pub st_rdev: crate::dev_t,
         pub st_uid: crate::uid_t,
         pub st_gid: crate::gid_t,
-        pub __old_st_mtime: crate::_Time32t,
-        pub __old_st_atime: crate::_Time32t,
-        pub __old_st_ctime: crate::_Time32t,
+        __old_st_mtime: crate::_Time32t,
+        __old_st_atime: crate::_Time32t,
+        __old_st_ctime: crate::_Time32t,
         pub st_mode: mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_blocksize: crate::blksize_t,