[watch_os] add support for Apple WatchOS

Author: vladimir-ea

.idea/.gitignore

@@ -1172,9 +1172,9 @@ s_no_extra_traits! {
         pub ifi_noproto: u64,
         pub ifi_recvtiming: u32,
         pub ifi_xmittiming: u32,
-        #[cfg(any(target_arch = "arm", target_arch = "x86"))]
+        #[cfg(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32"))]
         pub ifi_lastchange: ::timeval,
-        #[cfg(not(any(target_arch = "arm", target_arch = "x86")))]
+        #[cfg(not(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32")))]
         pub ifi_lastchange: timeval32,
     }
 
@@ -5522,7 +5522,7 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(any(target_arch = "arm", target_arch = "x86"))] {
+    if #[cfg(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32"))] {
         mod b32;
         pub use self::b32::*;
     } else if #[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))] {

.idea/libc.iml

@@ -37,6 +37,7 @@ s! {
 
         #[cfg(not(any(target_os = "macos",
                       target_os = "ios",
+                      target_os = "watchos",
                       target_os = "netbsd",
                       target_os = "openbsd")))]
         pub pw_fields: ::c_int,
@@ -880,7 +881,7 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(any(target_os = "macos", target_os = "ios"))] {
+    if #[cfg(any(target_os = "macos", target_os = "ios", target_os = "watchos"))] {
         mod apple;
         pub use self::apple::*;
     } else if #[cfg(any(target_os = "openbsd", target_os = "netbsd"))] {

.idea/modules.xml

@@ -348,6 +348,7 @@ cfg_if! {
         extern {}
     } else if #[cfg(any(target_os = "macos",
                         target_os = "ios",
+                        target_os = "watchos",
                         target_os = "android",
                         target_os = "openbsd"))] {
         #[link(name = "c")]
@@ -1017,7 +1018,7 @@ extern "C" {
     pub fn getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int;
 
     #[cfg_attr(
-        any(target_os = "macos", target_os = "ios"),
+        any(target_os = "macos", target_os = "ios", target_os = "watchos"),
         link_name = "realpath$DARWIN_EXTSN"
     )]
     pub fn realpath(pathname: *const ::c_char, resolved: *mut ::c_char) -> *mut ::c_char;
@@ -1183,7 +1184,7 @@ extern "C" {
         ),
         link_name = "__res_init"
     )]
-    #[cfg_attr(any(target_os = "macos", target_os = "ios"), link_name = "res_9_init")]
+    #[cfg_attr(any(target_os = "macos", target_os = "ios", target_os = "watchos"), link_name = "res_9_init")]
     pub fn res_init() -> ::c_int;
 
     #[cfg_attr(target_os = "netbsd", link_name = "__gmtime_r50")]
@@ -1456,6 +1457,7 @@ cfg_if! {
         pub use self::linux_like::*;
     } else if #[cfg(any(target_os = "macos",
                         target_os = "ios",
+                        target_os = "watchos",
                         target_os = "freebsd",
                         target_os = "dragonfly",
                         target_os = "openbsd",