Fuchsia: Build standalone VM. Make it run "Hello, World!".

runtime/bin/crypto_fuchsia.cc

Index: runtime/bin/crypto_fuchsia.cc
diff --git a/runtime/bin/crypto_win.cc b/runtime/bin/crypto_fuchsia.cc
similarity index 72%
copy from runtime/bin/crypto_win.cc
copy to runtime/bin/crypto_fuchsia.cc
index 0208d95757fda0c14c0e442578e80676a499ceb5..9423f7cdf9423a3bed545b2f051bb42dae635dc1 100644
--- a/runtime/bin/crypto_win.cc
+++ b/runtime/bin/crypto_fuchsia.cc
@@ -1,13 +1,9 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#ifndef _CRT_RAND_S
-#define _CRT_RAND_S
-#endif
-
 #include "platform/globals.h"
-#if defined(TARGET_OS_WINDOWS)
+#if defined(TARGET_OS_FUCHSIA)
 
 #include "bin/crypto.h"
 
@@ -18,7 +14,7 @@ bool Crypto::GetRandomBytes(intptr_t count, uint8_t* buffer) {
   uint32_t num;
   intptr_t read = 0;
   while (read < count) {
-    if (rand_s(&num) != 0) {
+    if (rand_r(&num) != 0) {
       return false;
     }
     for (int i = 0; i < 4 && read < count; i++) {
@@ -32,4 +28,4 @@ bool Crypto::GetRandomBytes(intptr_t count, uint8_t* buffer) {
 }  // namespace bin
 }  // namespace dart
 
-#endif  // defined(TARGET_OS_WINDOWS)
+#endif  // defined(TARGET_OS_FUCHSIA)