From e5bdc9396090a72952e8cedddc17ac187f4075c2 Mon Sep 17 00:00:00 2001
From: Binrui Dong <brett.browning.dong@gmail.com>
Date: Mon, 15 Feb 2021 22:50:57 -0500
Subject: [PATCH] Workaround to self move assign error with _GLIBCXX_DEBUG

---
 pch/main-pch.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pch/main-pch.hpp b/pch/main-pch.hpp
index da8bf85e32157..05a3567076ce2 100644
--- a/pch/main-pch.hpp
+++ b/pch/main-pch.hpp
@@ -1,3 +1,15 @@
+// Workaround to a bug in libstdc++ prior to GCC 11 causing
+// Error: attempt to self move assign.
+// when compiling with _GLIBCXX_DEBUG
+// see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85828
+#if defined(_GLIBCXX_DEBUG) && defined(__GNUC__) && (__GNUC__ < 11)
+#include <debug/macros.h>
+#undef __glibcxx_check_self_move_assign
+#define __glibcxx_check_self_move_assign(x)
+#ifdef __glibcxx_check_self_move_assign // suppress unused macro warning
+#endif
+#endif
+
 #include <algorithm>
 #include <array>
 #include <bitset>