Update usages of 'OSX' (and other old names) to 'macOS'.

As of last year with version 'Sierra', the Mac operating system is now
called 'macOS'.

RELEASES.md

@@ -5056,7 +5056,7 @@ Version 0.1  (2012-01-20)
 
    * Compiler works with the following configurations:
       * Linux: x86 and x86_64 hosts and targets
-      * MacOS: x86 and x86_64 hosts and targets
+      * macOS: x86 and x86_64 hosts and targets
       * Windows: x86 hosts and targets
 
    * Cross compilation / multi-target configuration supported.

src/bootstrap/bin/rustc.rs

@@ -182,7 +182,7 @@ fn main() {
         if env::var("RUSTC_RPATH") == Ok("true".to_string()) {
             let rpath = if target.contains("apple") {
 
-                // Note that we need to take one extra step on OSX to also pass
+                // Note that we need to take one extra step on macOS to also pass
                 // `-Wl,-instal_name,@rpath/...` to get things to work right. To
                 // do that we pass a weird flag to the compiler to get it to do
                 // so. Note that this is definitely a hack, and we should likely

src/bootstrap/check.rs

@@ -176,7 +176,7 @@ pub fn compiletest(build: &Build,
     cmd.arg("--docck-python").arg(build.python());
 
     if build.config.build.ends_with("apple-darwin") {
-        // Force /usr/bin/python on OSX for LLDB tests because we're loading the
+        // Force /usr/bin/python on macOS for LLDB tests because we're loading the
         // LLDB plugin's compiled module which only works with the system python
         // (namely not Homebrew-installed python)
         cmd.arg("--lldb-python").arg("/usr/bin/python");

src/bootstrap/compile.rs

@@ -249,7 +249,7 @@ pub fn rustc(build: &Build, target: &str, compiler: &Compiler) {
         cargo.env("CFG_LLVM_ROOT", s);
     }
     // Building with a static libstdc++ is only supported on linux right now,
-    // not for MSVC or OSX
+    // not for MSVC or macOS
     if build.config.llvm_static_stdcpp &&
        !target.contains("windows") &&
        !target.contains("apple") {

src/bootstrap/lib.rs

@@ -846,7 +846,7 @@ impl Build {
                            .filter(|s| !s.starts_with("-O") && !s.starts_with("/O"))
                            .collect::<Vec<_>>();
 
-        // If we're compiling on OSX then we add a few unconditional flags
+        // If we're compiling on macOS then we add a few unconditional flags
         // indicating that we want libc++ (more filled out than libstdc++) and
         // we want to compile for 10.7. This way we can ensure that
         // LLVM/jemalloc/etc are all properly compiled.

src/bootstrap/sanity.rs

@@ -151,10 +151,10 @@ pub fn check(build: &mut Build) {
     }
 
     for target in build.config.target.iter() {
-        // Can't compile for iOS unless we're on OSX
+        // Can't compile for iOS unless we're on macOS
         if target.contains("apple-ios") &&
            !build.config.build.contains("apple-darwin") {
-            panic!("the iOS target is only supported on OSX");
+            panic!("the iOS target is only supported on macOS");
         }
 
         // Make sure musl-root is valid if specified

src/doc/book/src/testing.md

@@ -147,7 +147,7 @@ And that's reflected in the summary line:
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured
 ```
 
-We also get a non-zero status code. We can use `$?` on OS X and Linux:
+We also get a non-zero status code. We can use `$?` on macOS and Linux:
 
 ```bash
 $ echo $?

src/liballoc_jemalloc/lib.rs

@@ -30,7 +30,7 @@ pub use imp::*;
 mod imp {
     use libc::{c_int, c_void, size_t};
 
-    // Note that the symbols here are prefixed by default on OSX and Windows (we
+    // Note that the symbols here are prefixed by default on macOS and Windows (we
     // don't explicitly request it), and on Android and DragonFly we explicitly
     // request it as unprefixing cause segfaults (mismatches in allocators).
     extern "C" {

src/librustc/middle/cstore.rs

@@ -123,7 +123,7 @@ pub enum LinkagePreference {
 pub enum NativeLibraryKind {
     NativeStatic,    // native static library (.a archive)
     NativeStaticNobundle, // native static library, which doesn't get bundled into .rlibs
-    NativeFramework, // OSX-specific
+    NativeFramework, // macOS-specific
     NativeUnknown,   // default way to specify a dynamic library
 }
 

src/librustc/session/config.rs

@@ -971,7 +971,7 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
     always_encode_mir: bool = (false, parse_bool, [TRACKED],
           "encode MIR of all functions into the crate metadata"),
     osx_rpath_install_name: bool = (false, parse_bool, [TRACKED],
-          "pass `-install_name @rpath/...` to the OSX linker"),
+          "pass `-install_name @rpath/...` to the macOS linker"),
     sanitizer: Option<Sanitizer> = (None, parse_sanitizer, [TRACKED],
                                    "Use a sanitizer"),
 }

src/librustc_back/target/apple_base.rs

@@ -13,12 +13,12 @@ use std::env;
 use target::TargetOptions;
 
 pub fn opts() -> TargetOptions {
-    // ELF TLS is only available in OSX 10.7+. If you try to compile for 10.6
+    // ELF TLS is only available in macOS 10.7+. If you try to compile for 10.6
     // either the linker will complain if it is used or the binary will end up
-    // segfaulting at runtime when run on 10.6. Rust by default supports OSX
+    // segfaulting at runtime when run on 10.6. Rust by default supports macOS
     // 10.7+, but there is a standard environment variable,
     // MACOSX_DEPLOYMENT_TARGET, which is used to signal targeting older
-    // versions of OSX. For example compiling on 10.10 with
+    // versions of macOS. For example compiling on 10.10 with
     // MACOSX_DEPLOYMENT_TARGET set to 10.6 will cause the linker to generate
     // warnings about the usage of ELF TLS.
     //
@@ -33,7 +33,7 @@ pub fn opts() -> TargetOptions {
     }).unwrap_or((10, 7));
 
     TargetOptions {
-        // OSX has -dead_strip, which doesn't rely on function_sections
+        // macOS has -dead_strip, which doesn't rely on function_sections
         function_sections: false,
         dynamic_linking: true,
         executables: true,

src/librustc_back/target/mod.rs

@@ -318,8 +318,8 @@ pub struct TargetOptions {
     /// Whether the target toolchain is like OpenBSD's.
     /// Only useful for compiling against OpenBSD, for configuring abi when returning a struct.
     pub is_like_openbsd: bool,
-    /// Whether the target toolchain is like OSX's. Only useful for compiling against iOS/OS X, in
-    /// particular running dsymutil and some other stuff like `-dead_strip`. Defaults to false.
+    /// Whether the target toolchain is like macOS's. Only useful for compiling against iOS/macOS,
+    /// in particular running dsymutil and some other stuff like `-dead_strip`. Defaults to false.
     pub is_like_osx: bool,
     /// Whether the target toolchain is like Solaris's.
     /// Only useful for compiling against Illumos/Solaris,

src/librustc_metadata/creader.rs

@@ -99,7 +99,7 @@ fn register_native_lib(sess: &Session,
     }
     let is_osx = sess.target.target.options.is_like_osx;
     if lib.kind == cstore::NativeFramework && !is_osx {
-        let msg = "native frameworks are only available on OSX targets";
+        let msg = "native frameworks are only available on macOS targets";
         match span {
             Some(span) => span_err!(sess, span, E0455, "{}", msg),
             None => sess.err(msg),

src/librustc_metadata/diagnostics.rs

@@ -27,7 +27,7 @@ name. Example:
 "##,
 
 E0455: r##"
-Linking with `kind=framework` is only supported when targeting OS X,
+Linking with `kind=framework` is only supported when targeting macOS,
 as frameworks are specific to that operating system.
 
 Erroneous code example:

src/librustc_metadata/encoder.rs

@@ -1404,7 +1404,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
 //
 // And here we run into yet another obscure archive bug: in which metadata
 // loaded from archives may have trailing garbage bytes. Awhile back one of
-// our tests was failing sporadically on the OSX 64-bit builders (both nopt
+// our tests was failing sporadically on the macOS 64-bit builders (both nopt
 // and opt) by having ebml generate an out-of-bounds panic when looking at
 // metadata.
 //

src/librustc_trans/back/link.rs

@@ -583,7 +583,7 @@ fn link_rlib<'a>(sess: &'a Session,
             }
 
             // After adding all files to the archive, we need to update the
-            // symbol table of the archive. This currently dies on OSX (see
+            // symbol table of the archive. This currently dies on macOS (see
             // #11162), and isn't necessary there anyway
             if !sess.target.target.options.is_like_osx {
                 ab.update_symbols();
@@ -764,7 +764,7 @@ fn link_natively(sess: &Session,
     // pain to land PRs when they spuriously fail due to a segfault.
     //
     // The issue #38878 has some more debugging information on it as well, but
-    // this unfortunately looks like it's just a race condition in OSX's linker
+    // this unfortunately looks like it's just a race condition in macOS's linker
     // with some thread pool working in the background. It seems that no one
     // currently knows a fix for this so in the meantime we're left with this...
     info!("{:?}", &cmd);
@@ -841,7 +841,7 @@ fn link_natively(sess: &Session,
     }
 
 
-    // On OSX, debuggers need this utility to get run to do some munging of
+    // On macOS, debuggers need this utility to get run to do some munging of
     // the symbols
     if sess.target.target.options.is_like_osx && sess.opts.debuginfo != NoDebugInfo {
         match Command::new("dsymutil").arg(out_filename).output() {

src/librustc_trans/back/linker.rs

@@ -139,7 +139,7 @@ impl<'a> Linker for GnuLinker<'a> {
                     .arg("-l").arg(lib)
                     .arg("-Wl,--no-whole-archive");
         } else {
-            // -force_load is the OSX equivalent of --whole-archive, but it
+            // -force_load is the macOS equivalent of --whole-archive, but it
             // involves passing the full path to the library to link.
             let mut v = OsString::from("-Wl,-force_load,");
             v.push(&archive::find_library(lib, search_path, &self.sess));

src/librustc_trans/back/symbol_names.rs

@@ -351,7 +351,7 @@ fn mangle<PI: Iterator<Item=InternedString>>(path: PI, hash: &str) -> String {
     // Follow C++ namespace-mangling style, see
     // http://en.wikipedia.org/wiki/Name_mangling for more info.
     //
-    // It turns out that on OSX you can actually have arbitrary symbols in
+    // It turns out that on macOS you can actually have arbitrary symbols in
     // function names (at least when given to LLVM), but this is not possible
     // when using unix's linker. Perhaps one day when we just use a linker from LLVM
     // we won't need to do this name mangling. The problem with name mangling is

src/librustc_trans/debuginfo/mod.rs

@@ -164,9 +164,9 @@ pub fn finalize(cx: &CrateContext) {
         llvm::LLVMRustDIBuilderFinalize(DIB(cx));
         llvm::LLVMRustDIBuilderDispose(DIB(cx));
         // Debuginfo generation in LLVM by default uses a higher
-        // version of dwarf than OS X currently understands. We can
+        // version of dwarf than macOS currently understands. We can
         // instruct LLVM to emit an older version of dwarf, however,
-        // for OS X to understand. For more info see #11352
+        // for macOS to understand. For more info see #11352
         // This can be overridden using --llvm-opts -dwarf-version,N.
         // Android has the same issue (#22398)
         if cx.sess().target.target.options.is_like_osx ||

src/librustdoc/plugins.rs

@@ -42,7 +42,7 @@ impl PluginManager {
     /// Load a plugin with the given name.
     ///
     /// Turns `name` into the proper dynamic library filename for the given
-    /// platform. On windows, it turns into name.dll, on OS X, name.dylib, and
+    /// platform. On windows, it turns into name.dll, on macOS, name.dylib, and
     /// elsewhere, libname.so.
     pub fn load_plugin(&mut self, name: String) {
         let x = self.prefix.join(libname(name));

src/libstd/os/macos/mod.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! MacOS-specific definitions
+//! macOS-specific definitions
 
 #![stable(feature = "raw_ext", since = "1.1.0")]
 

src/libstd/os/macos/raw.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! MacOS-specific raw type definitions
+//! macOS-specific raw type definitions
 
 #![stable(feature = "raw_ext", since = "1.1.0")]
 #![rustc_deprecated(since = "1.8.0",

src/libstd/rand/mod.rs

@@ -52,7 +52,7 @@
 //!     If an application does not have `getrandom` and likely to be run soon after first booting,
 //!     or on a system with very few entropy sources, one should consider using `/dev/random` via
 //!     `ReaderRng`.
-//! -   On some systems (e.g. FreeBSD, OpenBSD and Mac OS X) there is no difference
+//! -   On some systems (e.g. FreeBSD, OpenBSD and macOS) there is no difference
 //!     between the two sources. (Also note that, on some systems e.g. FreeBSD, both `/dev/random`
 //!     and `/dev/urandom` may block once if the CSPRNG has not seeded yet.)
 
@@ -195,7 +195,7 @@ impl Rng for ThreadRng {
 /// A random number generator that retrieves randomness straight from
 /// the operating system. Platform sources:
 ///
-/// - Unix-like systems (Linux, Android, Mac OSX): read directly from
+/// - Unix-like systems (Linux, Android, macOS): read directly from
 ///   `/dev/urandom`, or from `getrandom(2)` system call if available.
 /// - Windows: calls `CryptGenRandom`, using the default cryptographic
 ///   service provider with the `PROV_RSA_FULL` type.

src/libstd/sys/redox/fast_thread_local.rs

@@ -96,17 +96,17 @@ pub unsafe extern fn destroy_value<T>(ptr: *mut u8) {
     // `None`.
     (*ptr).dtor_running.set(true);
 
-    // The OSX implementation of TLS apparently had an odd aspect to it
+    // The macOS implementation of TLS apparently had an odd aspect to it
     // where the pointer we have may be overwritten while this destructor
     // is running. Specifically if a TLS destructor re-accesses TLS it may
     // trigger a re-initialization of all TLS variables, paving over at
     // least some destroyed ones with initial values.
     //
-    // This means that if we drop a TLS value in place on OSX that we could
+    // This means that if we drop a TLS value in place on macOS that we could
     // revert the value to its original state halfway through the
     // destructor, which would be bad!
     //
-    // Hence, we use `ptr::read` on OSX (to move to a "safe" location)
+    // Hence, we use `ptr::read` on macOS (to move to a "safe" location)
     // instead of drop_in_place.
     if cfg!(target_os = "macos") {
         ptr::read((*ptr).inner.get());

src/libstd/sys/redox/process.rs

@@ -249,7 +249,7 @@ impl Command {
     // mutex, and then after the fork they unlock it.
     //
     // Despite this information, libnative's spawn has been witnessed to
-    // deadlock on both OSX and FreeBSD. I'm not entirely sure why, but
+    // deadlock on both macOS and FreeBSD. I'm not entirely sure why, but
     // all collected backtraces point at malloc/free traffic in the
     // child spawned process.
     //

src/libstd/sys/unix/backtrace/mod.rs

@@ -13,7 +13,7 @@
 /// Some methods of getting a backtrace:
 ///
 /// * The backtrace() functions on unix. It turns out this doesn't work very
-///   well for green threads on OSX, and the address to symbol portion of it
+///   well for green threads on macOS, and the address to symbol portion of it
 ///   suffers problems that are described below.
 ///
 /// * Using libunwind. This is more difficult than it sounds because libunwind
@@ -51,9 +51,9 @@
 ///
 /// * Use dladdr(). The original backtrace()-based idea actually uses dladdr()
 ///   behind the scenes to translate, and this is why backtrace() was not used.
-///   Conveniently, this method works fantastically on OSX. It appears dladdr()
+///   Conveniently, this method works fantastically on macOS. It appears dladdr()
 ///   uses magic to consult the local symbol table, or we're putting everything
-///   in the dynamic symbol table anyway. Regardless, for OSX, this is the
+///   in the dynamic symbol table anyway. Regardless, for macOS, this is the
 ///   method used for translation. It's provided by the system and easy to do.o
 ///
 ///   Sadly, all other systems have a dladdr() implementation that does not
@@ -75,7 +75,7 @@
 /// * Use `libbacktrace`. It turns out that this is a small library bundled in
 ///   the gcc repository which provides backtrace and symbol translation
 ///   functionality. All we really need from it is the backtrace functionality,
-///   and we only really need this on everything that's not OSX, so this is the
+///   and we only really need this on everything that's not macOS, so this is the
 ///   chosen route for now.
 ///
 /// In summary, the current situation uses libgcc_s to get a trace of stack

src/libstd/sys/unix/ext/net.rs

@@ -204,7 +204,7 @@ impl SocketAddr {
         let len = self.len as usize - sun_path_offset();
         let path = unsafe { mem::transmute::<&[libc::c_char], &[u8]>(&self.addr.sun_path) };
 
-        // OSX seems to return a len of 16 and a zeroed sun_path for unnamed addresses
+        // macOS seems to return a len of 16 and a zeroed sun_path for unnamed addresses
         if len == 0 || (cfg!(not(target_os = "linux")) && self.addr.sun_path[0] == 0) {
             AddressKind::Unnamed
         } else if self.addr.sun_path[0] == 0 {

src/libstd/sys/unix/fast_thread_local.rs

@@ -128,7 +128,7 @@ unsafe fn register_dtor(t: *mut u8, dtor: unsafe extern fn(*mut u8)) {
     register_dtor_fallback(t, dtor);
 }
 
-// OSX's analog of the above linux function is this _tlv_atexit function.
+// macOS's analog of the above linux function is this _tlv_atexit function.
 // The disassembly of thread_local globals in C++ (at least produced by
 // clang) will have this show up in the output.
 #[cfg(target_os = "macos")]
@@ -154,17 +154,17 @@ pub unsafe extern fn destroy_value<T>(ptr: *mut u8) {
     // `None`.
     (*ptr).dtor_running.set(true);
 
-    // The OSX implementation of TLS apparently had an odd aspect to it
+    // The macOS implementation of TLS apparently had an odd aspect to it
     // where the pointer we have may be overwritten while this destructor
     // is running. Specifically if a TLS destructor re-accesses TLS it may
     // trigger a re-initialization of all TLS variables, paving over at
     // least some destroyed ones with initial values.
     //
-    // This means that if we drop a TLS value in place on OSX that we could
+    // This means that if we drop a TLS value in place on macOS that we could
     // revert the value to its original state halfway through the
     // destructor, which would be bad!
     //
-    // Hence, we use `ptr::read` on OSX (to move to a "safe" location)
+    // Hence, we use `ptr::read` on macOS (to move to a "safe" location)
     // instead of drop_in_place.
     if cfg!(target_os = "macos") {
         ptr::read((*ptr).inner.get());

src/libstd/sys/unix/fd.rs

@@ -29,7 +29,7 @@ fn max_len() -> usize {
     // with the man page quoting that if the count of bytes to read is
     // greater than `SSIZE_MAX` the result is "unspecified".
     //
-    // On OSX, however, apparently the 64-bit libc is either buggy or
+    // On macOS, however, apparently the 64-bit libc is either buggy or
     // intentionally showing odd behavior by rejecting any read with a size
     // larger than or equal to INT_MAX. To handle both of these the read
     // size is capped on both platforms.

src/libstd/sys/unix/fs.rs

@@ -439,7 +439,7 @@ impl File {
         // Linux kernel then the flag is just ignored by the OS, so we continue
         // to explicitly ask for a CLOEXEC fd here.
         //
-        // The CLOEXEC flag, however, is supported on versions of OSX/BSD/etc
+        // The CLOEXEC flag, however, is supported on versions of macOS/BSD/etc
         // that we support, so we only do this on Linux currently.
         if cfg!(target_os = "linux") {
             fd.set_cloexec()?;
@@ -573,7 +573,7 @@ impl fmt::Debug for File {
         #[cfg(target_os = "macos")]
         fn get_path(fd: c_int) -> Option<PathBuf> {
             // FIXME: The use of PATH_MAX is generally not encouraged, but it
-            // is inevitable in this case because OS X defines `fcntl` with
+            // is inevitable in this case because macOS defines `fcntl` with
             // `F_GETPATH` in terms of `MAXPATHLEN`, and there are no
             // alternatives. If a better method is invented, it should be used
             // instead.

src/libstd/sys/unix/process/process_common.rs

@@ -434,8 +434,8 @@ mod tests {
     }
 
     // See #14232 for more information, but it appears that signal delivery to a
-    // newly spawned process may just be raced in the OSX, so to prevent this
-    // test from being flaky we ignore it on OSX.
+    // newly spawned process may just be raced in the macOS, so to prevent this
+    // test from being flaky we ignore it on macOS.
     #[test]
     #[cfg_attr(target_os = "macos", ignore)]
     #[cfg_attr(target_os = "nacl", ignore)] // no signals on NaCl.

src/libstd/sys/unix/process/process_unix.rs

@@ -129,7 +129,7 @@ impl Command {
     // mutex, and then after the fork they unlock it.
     //
     // Despite this information, libnative's spawn has been witnessed to
-    // deadlock on both OSX and FreeBSD. I'm not entirely sure why, but
+    // deadlock on both macOS and FreeBSD. I'm not entirely sure why, but
     // all collected backtraces point at malloc/free traffic in the
     // child spawned process.
     //

src/libstd/sys/unix/stack_overflow.rs

@@ -187,7 +187,7 @@ mod imp {
             let stack =  libc::stack_t {
                 ss_sp: ptr::null_mut(),
                 ss_flags: SS_DISABLE,
-                // Workaround for bug in MacOS implementation of sigaltstack
+                // Workaround for bug in macOS implementation of sigaltstack
                 // UNIX2003 which returns ENOMEM when disabling a stack while
                 // passing ss_size smaller than MINSIGSTKSZ. According to POSIX
                 // both ss_sp and ss_size should be ignored in this case.

src/libstd/thread/local.rs

@@ -74,7 +74,7 @@ use mem;
 ///    destroyed, but not all platforms have this guard. Those platforms that do
 ///    not guard typically have a synthetic limit after which point no more
 ///    destructors are run.
-/// 3. On OSX, initializing TLS during destruction of other TLS slots can
+/// 3. On macOS, initializing TLS during destruction of other TLS slots can
 ///    sometimes cancel *all* destructors for the current thread, whether or not
 ///    the slots have already had their destructors run or not.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -524,9 +524,9 @@ mod tests {
     }
 
     // Note that this test will deadlock if TLS destructors aren't run (this
-    // requires the destructor to be run to pass the test). OSX has a known bug
+    // requires the destructor to be run to pass the test). macOS has a known bug
     // where dtors-in-dtors may cancel other destructors, so we just ignore this
-    // test on OSX.
+    // test on macOS.
     #[test]
     #[cfg_attr(target_os = "macos", ignore)]
     fn dtors_in_dtors_in_dtors() {

src/libterm/terminfo/searcher.rs

@@ -67,7 +67,7 @@ pub fn get_dbpath_for_term(term: &str) -> Option<PathBuf> {
             p.pop();
 
             // on some installations the dir is named after the hex of the char
-            // (e.g. OS X)
+            // (e.g. macOS)
             p.push(&format!("{:x}", first_char as usize));
             p.push(term);
             if fs::metadata(&p).is_ok() {
@@ -82,7 +82,7 @@ pub fn get_dbpath_for_term(term: &str) -> Option<PathBuf> {
 #[ignore(reason = "buildbots don't have ncurses installed and I can't mock everything I need")]
 fn test_get_dbpath_for_term() {
     // woefully inadequate test coverage
-    // note: current tests won't work with non-standard terminfo hierarchies (e.g. OS X's)
+    // note: current tests won't work with non-standard terminfo hierarchies (e.g. macOS's)
     use std::env;
     // FIXME (#9639): This needs to handle non-utf8 paths
     fn x(t: &str) -> String {

src/test/compile-fail/allocator-dylib-is-system.rs

@@ -30,7 +30,7 @@ extern crate allocator_dylib;
 // that this just passes on those platforms we link in some other allocator to
 // ensure we get the same error.
 //
-// So long as we CI linux/OSX we should be good.
+// So long as we CI linux/macOS we should be good.
 #[cfg(any(target_os = "linux", target_os = "macos"))]
 extern crate alloc_jemalloc;
 #[cfg(not(any(target_os = "linux", target_os = "macos")))]

src/test/compile-fail/allocator-rust-dylib-is-jemalloc.rs

@@ -28,7 +28,7 @@ extern crate allocator_dylib2;
 // that this just passes on those platforms we link in some other allocator to
 // ensure we get the same error.
 //
-// So long as we CI linux/OSX we should be good.
+// So long as we CI linux/macOS we should be good.
 #[cfg(any(all(target_os = "linux", any(target_arch = "x86", target_arch = "x86_64")),
           target_os = "macos"))]
 extern crate alloc_system;

src/test/compile-fail/manual-link-framework.rs

@@ -11,7 +11,7 @@
 // ignore-macos
 // ignore-ios
 // compile-flags:-l framework=foo
-// error-pattern: native frameworks are only available on OSX targets
+// error-pattern: native frameworks are only available on macOS targets
 
 fn main() {
 }

src/test/compile-fail/osx-frameworks.rs

@@ -12,7 +12,7 @@
 
 #[link(name = "foo", kind = "framework")]
 extern {}
-//~^^ ERROR: native frameworks are only available on OSX
+//~^^ ERROR: native frameworks are only available on macOS
 
 fn main() {
 }

src/test/run-pass/simd-intrinsic-generic-cast.rs

@@ -94,7 +94,7 @@ fn main() {
             // (E.g. negative float to unsigned integer goes through a
             // library routine on the default i686 platforms, and the
             // implementation of that routine differs on e.g. Linux
-            // vs. OSX, resulting in different answers.)
+            // vs. macOS, resulting in different answers.)
             if $from::is_float() {
                 if !$to::in_range(A) { from.0 = 0 as $to; to.0 = 0 as $to; }
                 if !$to::in_range(B) { from.1 = 0 as $to; to.1 = 0 as $to; }

src/tools/compiletest/src/raise_fd_limit.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-/// darwin_fd_limit exists to work around an issue where launchctl on Mac OS X
+/// darwin_fd_limit exists to work around an issue where launchctl on macOS
 /// defaults the rlimit maxfiles to 256/unlimited. The default soft limit of 256
 /// ends up being far too low for our multithreaded scheduler testing, depending
 /// on the number of cores available.