youknowdot · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -143,6 +143,8 @@ strip = true
 panic = "abort"
 
 [patch.crates-io]
+# Keep libc 0.2.191 compatible with iOS until nix releases https://github.com/nix-rust/nix/pull/2821.
+nix = { git = "https://github.com/nix-rust/nix", rev = "f9ba3ed0698255d93240b07ecbf39ecb05a8a5cd" }
 parking_lot_core = { git = "https://github.com/youknowone/parking_lot", branch = "rustpython" }
 # REDOX START, Uncomment when you want to compile/check with redoxer
 # REDOX END

diff --git a/Lib/_ios_support.py b/Lib/_ios_support.py
@@ -10,12 +10,15 @@
 else:
     # ctypes is available. Load the ObjC library, and wrap the objc_getClass,
     # sel_registerName methods
-    lib = util.find_library("objc")
-    if lib is None:
-        # Failed to load the objc library
-        raise ImportError("ObjC runtime library couldn't be loaded")
+    # find_library() resolves a system library through the dyld shared cache,
+    # which needs _dyld_shared_cache_contains_path(); that is unavailable before
+    # iOS 14, so fall back to the bare name, which dyld resolves by itself.
+    lib = util.find_library("objc") or "libobjc.dylib"
 
-    objc = cdll.LoadLibrary(lib)
+    try:
+        objc = cdll.LoadLibrary(lib)
+    except OSError:
+        raise ImportError("ObjC runtime library couldn't be loaded")
     objc.objc_getClass.restype = c_void_p
     objc.objc_getClass.argtypes = [c_char_p]
     objc.sel_registerName.restype = c_void_p

diff --git a/crates/host_env/src/os.rs b/crates/host_env/src/os.rs
@@ -8,8 +8,6 @@ use crate::fs;
 pub use crate::posix::rename;
 #[cfg(any(unix, target_os = "wasi"))]
 pub use crate::posix_unix_like::rename;
-#[cfg(any(unix, windows))]
-use core::ffi::CStr;
 use core::str::Utf8Error;
 #[cfg(windows)]
 use core::time::Duration;
@@ -569,7 +567,13 @@ pub fn isatty(_fd: i32) -> bool {
 }
 
 #[cfg(any(unix, windows))]
-pub fn system(command: &CStr) -> libc::c_int {
+#[cfg(not(any(
+    target_os = "ios",
+    target_os = "tvos",
+    target_os = "watchos",
+    target_os = "visionos"
+)))]
+pub fn system(command: &core::ffi::CStr) -> libc::c_int {
     unsafe { libc::system(command.as_ptr()) }
 }
 

diff --git a/crates/host_env/src/socket.rs b/crates/host_env/src/socket.rs
@@ -279,9 +279,12 @@ pub use libc::{MSG_CMSG_CLOEXEC, MSG_NOSIGNAL};
 pub use libc::{
     AF_SYSTEM, IP_ADD_SOURCE_MEMBERSHIP, IP_BLOCK_SOURCE, IP_DROP_SOURCE_MEMBERSHIP, IP_PKTINFO,
     IP_RECVTTL, IP_UNBLOCK_SOURCE, IPPROTO_MAX, IPPROTO_SCTP, MSG_NOSIGNAL, PF_SYSTEM,
-    SYSPROTO_CONTROL, TCP_CONNECTION_INFO, TCP_KEEPALIVE,
+    TCP_CONNECTION_INFO, TCP_KEEPALIVE,
 };
 
+#[cfg(target_os = "macos")]
+pub use libc::SYSPROTO_CONTROL;
+
 #[cfg(target_os = "linux")]
 pub use libc::{
     CAN_BCM, CAN_EFF_FLAG, CAN_EFF_MASK, CAN_ERR_FLAG, CAN_ERR_MASK, CAN_ISOTP, CAN_J1939, CAN_RAW,

diff --git a/crates/stdlib/src/socket.rs b/crates/stdlib/src/socket.rs
@@ -180,7 +180,11 @@ mod _socket {
 
     #[cfg(target_vendor = "apple")]
     #[pyattr]
-    use host_socket::{AF_SYSTEM, PF_SYSTEM, SYSPROTO_CONTROL, TCP_KEEPALIVE};
+    use host_socket::{AF_SYSTEM, PF_SYSTEM, TCP_KEEPALIVE};
+
+    #[cfg(target_os = "macos")]
+    #[pyattr]
+    use host_socket::SYSPROTO_CONTROL;
 
     #[cfg(target_vendor = "apple")]
     #[pyattr]

diff --git a/crates/vm/src/stdlib/os.rs b/crates/vm/src/stdlib/os.rs
@@ -210,8 +210,6 @@ pub(super) mod _os {
     #[cfg(not(windows))]
     use crate::exceptions;
     use crate::host_env::fileutils::StatStruct;
-    #[cfg(any(unix, windows))]
-    use crate::utils::ToCString;
     use crate::{
         AsObject, Py, PyObject, PyObjectRef, PyPayload, PyRef, PyResult,
         builtins::{
@@ -1879,15 +1877,29 @@ pub(super) mod _os {
     }
 
     #[cfg(any(unix, windows))]
+    #[cfg(not(any(
+        target_os = "ios",
+        target_os = "tvos",
+        target_os = "watchos",
+        target_os = "visionos"
+    )))]
     #[derive(FromArgs)]
     struct SystemArgs {
         #[pyarg(any)]
         command: PyStrRef,
     }
 
     #[cfg(any(unix, windows))]
+    #[cfg(not(any(
+        target_os = "ios",
+        target_os = "tvos",
+        target_os = "watchos",
+        target_os = "visionos"
+    )))]
     #[pyfunction]
     fn system(command: SystemArgs, vm: &VirtualMachine) -> PyResult<i32> {
+        use crate::utils::ToCString;
+
         let command = command.command;
         let cstr = command.to_cstring(vm)?;
         let x = crate::host_env::os::system(cstr.as_c_str());