From ec43c8a88a554da7f16b19e25f936686e0e4fc82 Mon Sep 17 00:00:00 2001
From: fiesh <fiesh@fiesh.homeip.net>
Date: Thu, 5 Feb 2015 14:23:29 +0100
Subject: [PATCH] work around GCC bug, see
 https://svn.boost.org/trac/boost/ticket/10531

---
 include/boost/polygon/point_data.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/boost/polygon/point_data.hpp b/include/boost/polygon/point_data.hpp
index 23c23ed..8224657 100644
--- a/include/boost/polygon/point_data.hpp
+++ b/include/boost/polygon/point_data.hpp
@@ -45,10 +45,18 @@ class point_data {
     return *this;
   }
 
+#ifdef __GNUC__
+  // "explicit" to work around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63356
+  template <typename PointType>
+  explicit point_data(const PointType& that) {
+    *this = that;
+  }
+#else // __GNUC__
   template <typename PointType>
   point_data(const PointType& that) {
     *this = that;
   }
+#endif // __GNUC__
 
   template <typename PointType>
   point_data& operator=(const PointType& that) {