Fix 1.13.0 support by gating use of target_vendor

Use a custom cfg to gate devkitppc support behind rust version 1.33+

Author: DarkKirb

README.md

@@ -52,6 +52,7 @@ newer Rust features are only available on newer Rust toolchains:
 | `extra_traits`       |  1.25.0 |
 | `core::ffi::c_void`  |  1.30.0 |
 | `repr(packed(N))`    |  1.33.0 |
+| `cfg(target_vendor)` |  1.33.0 |
 
 ## Platform support
 

build.rs

@@ -65,9 +65,10 @@ fn main() {
         println!("cargo:rustc-cfg=libc_core_cvoid");
     }
 
-    // Rust >= 1.33 supports repr(packed(N))
+    // Rust >= 1.33 supports repr(packed(N)) and cfg(target_vendor).
     if rustc_minor_ver >= 33 || rustc_dep_of_std {
         println!("cargo:rustc-cfg=libc_packedN");
+        println!("cargo:rustc-cfg=libc_cfg_target_vendor");
     }
 
     // #[thread_local] is currently unstable

src/unix/mod.rs

@@ -596,11 +596,13 @@ extern "C" {
     pub fn getchar_unlocked() -> ::c_int;
     pub fn putchar_unlocked(c: ::c_int) -> ::c_int;
 
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(target_os = "netbsd", link_name = "__socket30")]
     #[cfg_attr(target_os = "illumos", link_name = "__xnet_socket")]
     pub fn socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "connect$UNIX2003"
@@ -616,7 +618,8 @@ extern "C" {
         link_name = "listen$UNIX2003"
     )]
     pub fn listen(socket: ::c_int, backlog: ::c_int) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "accept$UNIX2003"
@@ -626,7 +629,8 @@ extern "C" {
         address: *mut sockaddr,
         address_len: *mut socklen_t,
     ) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "getpeername$UNIX2003"
@@ -636,7 +640,8 @@ extern "C" {
         address: *mut sockaddr,
         address_len: *mut socklen_t,
     ) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "getsockname$UNIX2003"
@@ -664,7 +669,8 @@ extern "C" {
         protocol: ::c_int,
         socket_vector: *mut ::c_int,
     ) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "sendto$UNIX2003"
@@ -1240,15 +1246,17 @@ extern "C" {
     pub fn dlclose(handle: *mut ::c_void) -> ::c_int;
     pub fn dladdr(addr: *const ::c_void, info: *mut Dl_info) -> ::c_int;
 
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     #[cfg_attr(target_os = "illumos", link_name = "__xnet_getaddrinfo")]
     pub fn getaddrinfo(
         node: *const c_char,
         service: *const c_char,
         hints: *const addrinfo,
         res: *mut *mut addrinfo,
     ) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     pub fn freeaddrinfo(res: *mut addrinfo);
     pub fn gai_strerror(errcode: ::c_int) -> *const ::c_char;
     #[cfg_attr(

src/unix/newlib/mod.rs

@@ -33,13 +33,15 @@ s! {
         pub ai_protocol: ::c_int,
         pub ai_addrlen: socklen_t,
 
-        #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+        #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+              target_vendor = "nintendo")))]
         #[cfg(target_arch = "xtensa")]
         pub ai_addr: *mut sockaddr,
 
         pub ai_canonname: *mut ::c_char,
 
-        #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+        #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+              target_vendor = "nintendo")))]
         #[cfg(not(target_arch = "xtensa"))]
         pub ai_addr: *mut sockaddr,
 
@@ -600,7 +602,8 @@ extern "C" {
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
 
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     pub fn bind(fd: ::c_int, addr: *const sockaddr, len: socklen_t)
         -> ::c_int;
     pub fn clock_settime(
@@ -617,7 +620,8 @@ extern "C" {
     ) -> ::c_int;
     pub fn closesocket(sockfd: ::c_int) -> ::c_int;
     pub fn ioctl(fd: ::c_int, request: ::c_ulong, ...) -> ::c_int;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     pub fn recvfrom(
         fd: ::c_int,
         buf: *mut ::c_void,
@@ -626,7 +630,8 @@ extern "C" {
         addr: *mut sockaddr,
         addr_len: *mut socklen_t,
     ) -> isize;
-    #[cfg(not(all(target_arch = "powerpc", target_vendor = "nintendo")))]
+    #[cfg(not(all(libc_cfg_target_vendor, target_arch = "powerpc",
+          target_vendor = "nintendo")))]
     pub fn getnameinfo(
         sa: *const sockaddr,
         salen: socklen_t,