std: Add Win64 support

Some extern blobs are duplicated without "stdcall" abi,
since Win64 does not use any calling convention.
(Giving any abi to them causes llvm producing wrong bytecode.)

1 files changed, 12 insertions, 0 deletions

diff --git a/src/libstd/unstable/dynamic_lib.rs b/src/libstd/unstable/dynamic_lib.rs
index 6dbe68200b3..90cf49cad1c 100644
--- a/src/libstd/unstable/dynamic_lib.rs
+++ b/src/libstd/unstable/dynamic_lib.rs
@@ -252,6 +252,7 @@ mod dl {
         FreeLibrary(handle); ()
     }
 
+    #[cfg(target_arch = "x86")]
     #[link_name = "kernel32"]
     extern "stdcall" {
         fn SetLastError(error: u32);
@@ -261,4 +262,15 @@ mod dl {
         fn GetProcAddress(handle: *libc::c_void, name: *libc::c_char) -> *libc::c_void;
         fn FreeLibrary(handle: *libc::c_void);
     }
+
+    #[cfg(target_arch = "x86_64")]
+    #[link_name = "kernel32"]
+    extern {
+        fn SetLastError(error: u32);
+        fn LoadLibraryW(name: *u16) -> *libc::c_void;
+        fn GetModuleHandleExW(dwFlags: libc::DWORD, name: *u16,
+                              handle: **libc::c_void) -> *libc::c_void;
+        fn GetProcAddress(handle: *libc::c_void, name: *libc::c_char) -> *libc::c_void;
+        fn FreeLibrary(handle: *libc::c_void);
+    }
 }