From dbce9878ab8830f194bc9e66a4e369082334bced Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Schnabel?= <aschnabel@gams.com>
Date: Wed, 3 Jul 2024 10:35:11 +0200
Subject: [PATCH] Fix building stdthread.cpp for GCC 9. - TStdThread destructor
 doesn't need to be virtual as the class is not used polymorphically -
 Destructor of base class will be called automatically after derived one

---
 src/gdlib/gmsstrm.cpp | 2 +-
 src/rtl/stdthread.cpp | 1 -
 src/rtl/stdthread.h   | 2 +-
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/gdlib/gmsstrm.cpp b/src/gdlib/gmsstrm.cpp
index bd63053e..01fa657c 100644
--- a/src/gdlib/gmsstrm.cpp
+++ b/src/gdlib/gmsstrm.cpp
@@ -117,7 +117,7 @@ void CompressTextFile( const std::string &fn, const std::string &fo, const std::
       NrRead = Fin.Read( Buffer.data(), (int) Buffer.size() );
       if( !NrRead ) break;
       Fout.Write( Buffer.data(), NrRead );
-   } while( NrRead >= static_cast<int>( Buffer.size() ) );
+   } while( NrRead >= static_cast<decltype(NrRead)>( Buffer.size() ) );
 }
 
 void UnCompressTextFile( const std::string &fn, const std::string &fo, const std::string &PassWord, int &ErrNr, std::string &ErrMsg )
diff --git a/src/rtl/stdthread.cpp b/src/rtl/stdthread.cpp
index ff4a5094..b2d99dac 100644
--- a/src/rtl/stdthread.cpp
+++ b/src/rtl/stdthread.cpp
@@ -118,7 +118,6 @@ TStdThread::~TStdThread()
    {
       if( joinable() )
          detach();
-      std::thread::~thread();
    }
    catch( const std::exception & )
    {
diff --git a/src/rtl/stdthread.h b/src/rtl/stdthread.h
index da794f27..439c56f9 100644
--- a/src/rtl/stdthread.h
+++ b/src/rtl/stdthread.h
@@ -56,7 +56,7 @@ class TStdThread : public std::thread
 {
 public:
    explicit TStdThread(const std::function<void()> &execute);
-   virtual ~TStdThread();
+   ~TStdThread();
    [[nodiscard]] uint64_t getThreadHash() const;
 };