1 files changed, 2 insertions, 1 deletions
diff --git a/coro.h b/coro.h
index 399ed1f..c5602bb 100644
--- a/coro.h
+++ b/coro.h
@@ -72,6 +72,7 @@
  * 2010-12-03 tentative support for uclibc (which lacks all sorts of things).
  * 2011-05-30 set initial callee-saved-registers to zero with CORO_ASM.
  *            use .cfi_undefined rip on linux-amd64 for better backtraces.
+ * 2011-06-08 maybe properly implement weird windows amd64 calling conventions.
  */
 
 #ifndef CORO_H
@@ -206,7 +207,7 @@ void coro_destroy (coro_context *ctx);
     && !defined(CORO_SJLJ) && !defined(CORO_LINUX) \
     && !defined(CORO_IRIX) && !defined(CORO_ASM) \
     && !defined(CORO_PTHREAD)
-# if defined(WINDOWS)
+# if defined(WINDOWS) || defined(_WIN32)
 #  define CORO_LOSER 1 /* you don't win with windoze */
 # elif defined(__linux) && (defined(__x86) || defined (__amd64))
 #  define CORO_ASM 1