[threading] Fix ERROR macro after including windows.h
diff --git a/lib/common/error_private.h b/lib/common/error_private.h
index 9dd9a87..f8e6801 100644
--- a/lib/common/error_private.h
+++ b/lib/common/error_private.h
@@ -51,7 +51,8 @@
#ifdef ERROR
# undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */
#endif
-#define ERROR(name) ((size_t)-PREFIX(name))
+#define ERROR(name) ZSTD_ERROR(name)
+#define ZSTD_ERROR(name) ((size_t)-PREFIX(name))
ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); }