QPR-13714: explicitly set flags for additional security

Author: farahkhashman

ORE-SWIG/setup.py

@@ -184,9 +184,11 @@ def finalize_options(self):
             self.define += [('__WIN32__', None), ('WIN32', None),
                             ('NDEBUG', None), ('_WINDOWS', None),
                             ('NOMINMAX', None)]
+            # ORE and QuantLib specific flags
+            self.define += [('QL_ENABLE_SESSIONS', None), ('QL_USE_STD_ANY', None), ('QL_FASTER_LAZY_OBJECTS', None), ('QL_USE_STD_OPTIONAL', None)]
             if 'ORE_USE_ZLIB' in os.environ:
                 self.define += [('ORE_USE_ZLIB', None)]
-            extra_compile_args = ['/GR', '/FD', '/Zm250', '/EHsc', '/bigobj', '/std:c++17', '/wd4996' ]
+            extra_compile_args = ['/GR', '/FD', '/Zm250', '/EHsc', '/bigobj', '/std:c++20', '/wd4996' ]
             extra_link_args = ['/subsystem:windows', machinetype]
             self.libraries = [ 'advapi32' ]