>From f32587ef92f74ef87b0218eacdb362010cb8b63c Mon Sep 17 00:00:00 2001
From: Jaap de Wolff <address@hidden>
Date: Sun, 10 May 2020 17:32:02 +0200
Subject: [PATCH 3/5] Solve Issue 5963

---
 lily/source-file.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lily/source-file.cc b/lily/source-file.cc
index c5e8c12d46..abee8cf10c 100644
--- a/lily/source-file.cc
+++ b/lily/source-file.cc
@@ -29,7 +29,9 @@
 #include "lily-imports.hh"
 
 #if GCC_MAJOR < 4
+#ifndef _GLIBCXX_HAVE_MBSTATE_T
 #define _GLIBCXX_HAVE_MBSTATE_T
+#endif
 #include <wchar.h>
 #endif /* GCC_MAJOR < 4 */
 #include <cstdio>
-- 
2.20.1