diff --git a/windoze.h b/windoze.h
new file mode 100644
index 0000000..4655086
--- /dev/null
+++ b/windoze.h
@@ -0,0 +1,12 @@
+#ifdef __MINGW32__
+
+/* set errno to WSAGetLastError() */
+int winsock2errno(long l);
+void __winsock_init(void);
+
+#else
+
+#define winsock2errno(fnord) (fnord)
+#define __winsock_init()
+
+#endif