Add more cuda cfg

Author: termoshtt

src/libstd/os/linux/raw.rs

@@ -36,6 +36,7 @@ pub use self::arch::{off_t, ino_t, nlink_t, blksize_t, blkcnt_t, stat, time_t};
           target_arch = "powerpc",
           target_arch = "arm",
           target_arch = "asmjs",
+          target_arch = "nvptx64",
           target_arch = "wasm32"))]
 mod arch {
     use os::raw::{c_long, c_short, c_uint};

src/libstd/sys/mod.rs

@@ -65,7 +65,7 @@ cfg_if! {
     if #[cfg(any(unix, target_os = "redox"))] {
         // On unix we'll document what's already available
         pub use self::ext as unix_ext;
-    } else if #[cfg(any(target_os = "cloudabi", target_arch = "wasm32"))] {
+    } else if #[cfg(any(target_os = "cloudabi", target_os = "cuda", target_arch = "wasm32"))] {
         // On CloudABI and wasm right now the module below doesn't compile
         // (missing things in `libc` which is empty) so just omit everything
         // with an empty module
@@ -84,7 +84,7 @@ cfg_if! {
     if #[cfg(windows)] {
         // On windows we'll just be documenting what's already available
         pub use self::ext as windows_ext;
-    } else if #[cfg(any(target_os = "cloudabi", target_arch = "wasm32"))] {
+    } else if #[cfg(any(target_os = "cloudabi", target_os = "cuda", target_arch = "wasm32"))] {
         // On CloudABI and wasm right now the shim below doesn't compile, so
         // just omit it
         #[unstable(issue = "0", feature = "std_internals")]