From 6531dfeacdac334a74e3087866dff73feb4f83bf Mon Sep 17 00:00:00 2001
From: Benjamin Bihler <benjamin.bihler@compositence.de>
Date: Tue, 21 Jul 2020 13:37:03 +0200
Subject: [PATCH] 0031680: Configuration - Compilation Fails With G++ 10.1, LD
 2.34 and Link-Time Optimization

Added a non-inline empty virtual destructor to LDOM_OSStream to force vtable generation in one
translation unit only.
---
 src/LDOM/LDOM_OSStream.cxx | 8 ++++++++
 src/LDOM/LDOM_OSStream.hxx | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/src/LDOM/LDOM_OSStream.cxx b/src/LDOM/LDOM_OSStream.cxx
index f19741d16e..4734721346 100644
--- a/src/LDOM/LDOM_OSStream.cxx
+++ b/src/LDOM/LDOM_OSStream.cxx
@@ -161,3 +161,11 @@ LDOM_OSStream::LDOM_OSStream (const Standard_Integer theMaxBuf)
 {
   init(&myBuffer);
 }
+
+//=======================================================================
+//function : ~LDOM_OSStream()
+//purpose  : Destructor - for g++ vtable generation in *this* translation unit
+//=======================================================================
+LDOM_OSStream::~LDOM_OSStream()
+{
+}
diff --git a/src/LDOM/LDOM_OSStream.hxx b/src/LDOM/LDOM_OSStream.hxx
index 63330db1bb..e3f88a5a2d 100644
--- a/src/LDOM/LDOM_OSStream.hxx
+++ b/src/LDOM/LDOM_OSStream.hxx
@@ -102,6 +102,8 @@ public:
   //! Constructor
   Standard_EXPORT LDOM_OSStream(const Standard_Integer theMaxBuf);
 
+  Standard_EXPORT virtual ~LDOM_OSStream();
+
   Standard_CString str () const {return myBuffer.str();}
 
   Standard_Integer Length () const { return myBuffer.Length(); }