Auto merge of rust-lang#751 - alexcrichton:sparc, r=alexcrichton

Fix compile on sparc64

src/lib.rs

@@ -78,6 +78,9 @@
 #![cfg_attr(all(target_os = "emscripten", target_arch = "wasm32"), doc(
     html_root_url = "https://doc.rust-lang.org/libc/wasm32-unknown-emscripten"
 ))]
+#![cfg_attr(all(target_os = "linux", target_arch = "xparc64"), doc(
+    html_root_url = "https://doc.rust-lang.org/libc/sparc64-unknown-linux-gnu"
+))]
 
 // Attributes needed when building as part of the standard library
 #![cfg_attr(stdbuild, feature(no_std, core, core_slice_ext, staged_api, custom_attribute, cfg_target_vendor))]

src/unix/notbsd/linux/other/b64/sparc64.rs

@@ -52,6 +52,36 @@ s! {
         __reserved: [::c_long; 2],
     }
 
+    pub struct statfs64 {
+        pub f_type: ::__fsword_t,
+        pub f_bsize: ::__fsword_t,
+        pub f_blocks: u64,
+        pub f_bfree: u64,
+        pub f_bavail: u64,
+        pub f_files: u64,
+        pub f_ffree: u64,
+        pub f_fsid: ::fsid_t,
+        pub f_namelen: ::__fsword_t,
+        pub f_frsize: ::__fsword_t,
+        pub f_flags: ::__fsword_t,
+        pub f_spare: [::__fsword_t; 4],
+    }
+
+    pub struct statvfs64 {
+        pub f_bsize: ::c_ulong,
+        pub f_frsize: ::c_ulong,
+        pub f_blocks: u64,
+        pub f_bfree: u64,
+        pub f_bavail: u64,
+        pub f_files: u64,
+        pub f_ffree: u64,
+        pub f_favail: u64,
+        pub f_fsid: ::c_ulong,
+        pub f_flag: ::c_ulong,
+        pub f_namemax: ::c_ulong,
+        __f_spare: [::c_int; 6],
+    }
+
     pub struct pthread_attr_t {
         __size: [u64; 7]
     }