--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/SharedLibrary/DllMain.cpp	Thu Jun 11 16:40:34 2020 +0200
@@ -0,0 +1,61 @@
+/**
+
+   This file merges 2 files:
+   ${BOOST_SOURCES_DIR}/libs/thread/src/win32/tss_dll.cpp
+   ${OPENSSL_SOURCES_DIR}/crypto/dllmain.c
+
+ **/
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+# ifdef __CYGWIN__
+#  include <windows.h>
+# endif
+
+#include "e_os.h"
+#include "crypto/cryptlib.h"
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+  switch (fdwReason)
+  {
+    case DLL_PROCESS_ATTACH:
+      //OPENSSL_cpuid_setup();  // TODO - Is this necessary?
+      break;
+        
+    case DLL_THREAD_ATTACH:
+      break;
+        
+    case DLL_THREAD_DETACH:
+      OPENSSL_thread_stop();
+      break;
+        
+    case DLL_PROCESS_DETACH:
+      break;
+  }
+    
+  return TRUE;
+}
+
+#endif
+
+
+namespace boost
+{
+  void tss_cleanup_implemented()
+  {
+    /*
+      This function's sole purpose is to cause a link error in cases where
+      automatic tss cleanup is not implemented by Boost.Threads as a
+      reminder that user code is responsible for calling the necessary
+      functions at the appropriate times (and for implementing an a
+      tss_cleanup_implemented() function to eliminate the linker's
+      missing symbol error).
+
+      If Boost.Threads later implements automatic tss cleanup in cases
+      where it currently doesn't (which is the plan), the duplicate
+      symbol error will warn the user that their custom solution is no
+      longer needed and can be removed.
+    */
+  }
+}
+