From 350ebab88a5e86a68bcfd519d0b4866c0dfcfa8c Mon Sep 17 00:00:00 2001
From: Nikita Kniazev <nok.raven@gmail.com>
Date: Fri, 5 Oct 2018 18:45:58 +0300
Subject: [PATCH] Workaround GCC 8-9 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87531
---
 .../boost/optional/detail/optional_trivially_copyable_base.hpp  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/optional/detail/optional_trivially_copyable_base.hpp b/include/boost/optional/detail/optional_trivially_copyable_base.hpp
index 91328ac..d2e55fa 100644
--- a/include/boost/optional/detail/optional_trivially_copyable_base.hpp
+++ b/include/boost/optional/detail/optional_trivially_copyable_base.hpp
@@ -71,7 +71,7 @@ class tc_optional_base : public optional_tag
     // Assigns from another optional<T> (deep-copies the rhs value)
     void assign ( tc_optional_base const& rhs ) 
     {
-      this->operator=(rhs);
+      *this = rhs;
     }
 
     // Assigns from another _convertible_ optional<U> (deep-copies the rhs value)