test if fs.writeSync is defined and on windows

Author: James Halliday

lib/default_stream.js

@@ -18,8 +18,14 @@ module.exports = function () {
     }
 
     function flush () {
-        try { fs.writeSync(1, line + '\n'); }
-        catch (e) { stream.emit('error', e) }
+        if (fs.writeSync && /^win/.test(process.platform)) {
+            try { fs.writeSync(1, line + '\n'); }
+            catch (e) { stream.emit('error', e) }
+        }
+        else {
+            try { console.log(line) }
+            catch (e) { stream.emit('error', e) }
+        }
         line = '';
     }
 };