Add clang++ compiler support

[ClausKlein]

/home/runner/work/axcioma/axcioma/taox11/tao/x11/valuetype/StringValueC.h:67:40: error: constexpr function's return type 'ref_type' (aka 'valuetype_reference< ::taox11::CORBA::StringValue>') is not a literal type
   67 |       inline static constexpr ref_type make_reference(Args&& ...args)
      |                                        ^
...
/home/runner/work/axcioma/axcioma/taox11/tao/x11/valuetype/StringValueC.h:193:40: error: constexpr function's return type 'ref_type' (aka 'valuetype_reference< ::taox11::CORBA::WStringValue>') is not a literal type
  193 |       inline static constexpr ref_type make_reference(Args&& ...args)
      |                                        ^

see https://github.com/ClausKlein/axcioma/actions/runs/18153220220

and https://github.com/copilot/share/481401ae-4180-84f3-9911-3c4000c16813

[jwillemsen]

clang is currently not a supported compiler, tagging as enhancement. The v2.6.0 release has been validated for Visual Studio 2022.

[jwillemsen]

Related to #421 as bcc64x is clang based

[ClausKlein]

This is also an issue with apple clang compiler.

And the brix build does not stop after an error?

builddriver executing: 'cat make-all.log'
Compilation SUCCEED in 0.484576 seconds
Number of warnings: 59
Number of errors: 2
Last Error:
  Message: "constexpr function's return type 'ref_type' (aka 'valuetype_reference< ::taox11::CORBA::WStringValue>') is not a literal type"
  Path: /Users/clausklein/Workspace/cpp/axcioma/taox11/tao/x11/valuetype/StringValueC.h
  Line Number: 193
  Column: 40
For full log, please open: /var/folders/wb/ckvxxgls5db7qyhqq4y5_l1c0000gq/T/build-mh7ed869.log
bash-5.3$ tail  make-all.log 
3 warnings generated.
clang++ -dynamiclib -install_name @rpath/libTAO_Strategies.dylib -o libTAO_Strategies.dylib .shobj/COIOP_Acceptor.o .shobj/COIOP_Connection_Handler.o .shobj/COIOP_Connector.o .shobj/COIOP_Endpoint.o .shobj/COIOP_EndpointsC.o .shobj/COIOP_Factory.o .shobj/COIOP_Profile.o .shobj/COIOP_Transport.o .shobj/DIOP_Acceptor.o .shobj/DIOP_Connection_Handler.o .shobj/DIOP_Connector.o .shobj/DIOP_Endpoint.o .shobj/DIOP_Factory.o .shobj/DIOP_Profile.o .shobj/DIOP_Transport.o .shobj/FIFO_Connection_Purging_Strategy.o .shobj/LFU_Connection_Purging_Strategy.o .shobj/LF_Strategy_Null.o .shobj/NULL_Connection_Purging_Strategy.o .shobj/OC_Endpoint_Selector_Factory.o .shobj/OC_Endpoint_Selector_Loader.o .shobj/Optimized_Connection_Endpoint_Selector.o .shobj/SCIOP_Acceptor.o .shobj/SCIOP_Connection_Handler.o .shobj/SCIOP_Connector.o .shobj/SCIOP_Endpoint.o .shobj/SCIOP_Factory.o .shobj/SCIOP_Profile.o .shobj/SCIOP_Transport.o .shobj/SHMIOP_Acceptor.o .shobj/SHMIOP_Connection_Handler.o .shobj/SHMIOP_Connector.o .shobj/SHMIOP_Endpoint.o .shobj/SHMIOP_Factory.o .shobj/SHMIOP_Profile.o .shobj/SHMIOP_Transport.o .shobj/Strategies_ORBInitializer.o .shobj/UIOP_Acceptor.o .shobj/UIOP_Connection_Handler.o .shobj/UIOP_Connector.o .shobj/UIOP_Endpoint.o .shobj/UIOP_Factory.o .shobj/UIOP_Profile.o .shobj/UIOP_Transport.o .shobj/advanced_resource.o .shobj/sciop_endpointsC.o .shobj/uiop_endpointsC.o -m64 -flat_namespace -rpath @executable_path/. -rpath "/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib" -L/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib -L.  -L/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib   -Wl,-rpath,/Users/clausklein/Workspace/cpp/axcioma/stagedir/lib  -lTAO_PI -lTAO_CodecFactory -lTAO_AnyTypeCode -lTAO -lACE 
3 warnings generated.
clang++ -dynamiclib -install_name @rpath/libTAO_PortableServer.dylib -o libTAO_PortableServer.dylib .shobj/Acceptor_Filter_Factory.o .shobj/Active_Object_Map.o .shobj/Active_Object_Map_Entry.o .shobj/Active_Policy_Strategies.o .shobj/AdapterActivatorA.o .shobj/AdapterActivatorC.o .shobj/Collocated_Arguments_Converter.o .shobj/Collocated_Object_Proxy_Broker.o .shobj/Creation_Time.o .shobj/Default_Acceptor_Filter.o .shobj/Default_Policy_Validator.o .shobj/Default_Servant_Dispatcher.o .shobj/Direct_Collocation_Upcall_Wrapper.o .shobj/ForwardRequestA.o .shobj/ForwardRequestC.o .shobj/IdAssignmentPolicy.o .shobj/IdAssignmentPolicyA.o .shobj/IdAssignmentPolicyC.o .shobj/IdAssignmentStrategy.o .shobj/IdAssignmentStrategySystem.o .shobj/IdAssignmentStrategyUser.o .shobj/IdUniquenessPolicy.o .shobj/IdUniquenessPolicyA.o .shobj/IdUniquenessPolicyC.o .shobj/IdUniquenessStrategy.o .shobj/IdUniquenessStrategyMultiple.o .shobj/IdUniquenessStrategyUnique.o .shobj/ImR_Client_Adapter.o .shobj/ImplicitActivationPolicy.o .shobj/ImplicitActivationPolicyA.o .shobj/ImplicitActivationPolicyC.o .shobj/ImplicitActivationStrategyExplicit.o .shobj/ImplicitActivationStrategyImplicit.o .shobj/Key_Adapters.o .shobj/LifespanPolicy.o .shobj/LifespanPolicyA.o .shobj/LifespanPolicyC.o .shobj/LifespanStrategy.o .shobj/LifespanStrategyPersistent.o .shobj/LifespanStrategyTransient.o .shobj/Network_Priority_Hook.o .shobj/Non_Servant_Upcall.o .shobj/ORT_Adapter_Factory.o .shobj/Object_Adapter.o .shobj/Object_Adapter_Factory.o .shobj/Operation_Table.o .shobj/Operation_Table_Binary_Search.o .shobj/Operation_Table_Dynamic_Hash.o .shobj/Operation_Table_Linear_Search.o .shobj/Operation_Table_Perfect_Hash.o .shobj/POAC.o .shobj/POAManager.o .shobj/POAManagerC.o .shobj/POAManagerFactory.o .shobj/POAManagerFactoryC.o .shobj/POA_Cached_Policies.o .shobj/POA_Current.o .shobj/POA_Current_Factory.o .shobj/POA_Current_Impl.o .shobj/POA_Guard.o .shobj/POA_Policy_Set.o .shobj/PS_CurrentC.o .shobj/PS_ForwardA.o .shobj/PS_ForwardC.o .shobj/PolicyS.o .shobj/PortableServer.o .shobj/PortableServerC.o .shobj/PortableServer_Functions.o .shobj/PortableServer_WFunctions.o .shobj/PortableServer_includeC.o .shobj/Regular_POA.o .shobj/RequestProcessingPolicy.o .shobj/RequestProcessingPolicyA.o .shobj/RequestProcessingPolicyC.o .shobj/RequestProcessingStrategy.o .shobj/RequestProcessingStrategyAOMOnly.o .shobj/RequestProcessingStrategyDefaultServant.o .shobj/RequestProcessingStrategyServantActivator.o .shobj/RequestProcessingStrategyServantLocator.o .shobj/RequestProcessingStrategyServantManager.o .shobj/Root_POA.o .shobj/SUpcall_commands.o .shobj/ServantActivatorA.o .shobj/ServantActivatorC.o .shobj/ServantLocatorA.o .shobj/ServantLocatorC.o .shobj/ServantManagerA.o .shobj/ServantManagerC.o .shobj/ServantRetentionPolicy.o .shobj/ServantRetentionPolicyA.o .shobj/ServantRetentionPolicyC.o .shobj/ServantRetentionStrategy.o .shobj/ServantRetentionStrategyNonRetain.o .shobj/ServantRetentionStrategyRetain.o .shobj/Servant_Base.o .shobj/Servant_Dispatcher.o .shobj/Servant_Upcall.o .shobj/StrategyFactory.o .shobj/ThreadPolicy.o .shobj/ThreadPolicyA.o .shobj/ThreadPolicyC.o .shobj/ThreadStrategyORBControl.o .shobj/ThreadStrategySingle.o .shobj/Upcall_Command.o .shobj/Upcall_Wrapper.o -m64 -flat_namespace -rpath @executable_path/. -rpath "/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib" -L/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib -L.  -L/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib   -Wl,-rpath,/Users/clausklein/Workspace/cpp/axcioma/stagedir/lib  -lTAO_AnyTypeCode -lTAO -lACE 
chmod a+rx libTAO_Strategies.dylib
/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/bin/add_rel_link.sh /Users/clausklein/Workspace/cpp/axcioma/ACE/TAO/tao/Strategies/libTAO_Strategies.dylib /Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib/libTAO_Strategies.dylib
ln -s ../../TAO/tao/Strategies/libTAO_Strategies.dylib /Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib/libTAO_Strategies.dylib
chmod a+rx libTAO_PortableServer.dylib
/Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/bin/add_rel_link.sh /Users/clausklein/Workspace/cpp/axcioma/ACE/TAO/tao/PortableServer/libTAO_PortableServer.dylib /Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib/libTAO_PortableServer.dylib
ln -s ../../TAO/tao/PortableServer/libTAO_PortableServer.dylib /Users/clausklein/Workspace/cpp/axcioma/ACE/ACE/lib/libTAO_PortableServer.dylib
bash-5.3$ 

[jwillemsen]

MacOSX isn't supported. Due to parallel make it can be that there are other messages after the error as far as I know (have't tested this)