WIN64 should come from the compiler or SDK, not us
diff --git a/win/resdefs.h.in b/win/resdefs.h.in
index b61db53..e86a92d 100644
--- a/win/resdefs.h.in
+++ b/win/resdefs.h.in
@@ -1,4 +1,3 @@
 #define __VERSIONSTR "@VERSION@\0"
 #define __RCVERSION @RCVERSION@
 #define __RCVERSIONSTR "@RCVERSION@\0"
-#cmakedefine WIN64