[Ace-users] [tao-bugs] MinGW Linking: undefined reference to members _narrow and release

[Paul Koster]

    TAO VERSION: 1.6.2
    ACE VERSION: 5.6.2

    HOST MACHINE and OPERATING SYSTEM:

Windows XP SP2, Winsock 2, using MinGW's g++ version 3.4.5

    THE $ACE_ROOT/ace/config.h FILE [if you use a link to a platform-
    specific file, simply state which one]:

config-win32.h

    THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE [if you
    use a link to a platform-specific file, simply state which one
    (unless this isn't used in this case, e.g., with Microsoft Visual
    C++)]:

include $(ACE_ROOT)/include/makeinclude/platform_mingw32.GNU
TAO_ORBSVCS = Naming Time Trader ImplRepo
debug=0

    CONTENTS OF $ACE_ROOT/bin/MakeProjectCreator/config/default.features
    (used by MPC when you generate your own makefiles):

N/A

    AREA/CLASS/EXAMPLE AFFECTED:

N/A

    DOES THE PROBLEM AFFECT:
LINKING

    SYNOPSIS:
Cannot link an application when stub and skeleton files are compiled into a 
Windows DLL, using MinGW.

    DESCRIPTION:

I'm trying to put generated stubs and skeletons into a Windows DLL, but it 
fails when linking the application using the DLL, resulting in undefined 
references to specific servant members.

This is the IDL file : (compiled with 
tao_idl -in -Wb,export_macro=EXPORT_DLL -Wb,export_include=dllheader.h 
nc.idl)
____________________________________________________________________________________

module type
{
	typedef sequence<float> sampleData;
	typedef sequence<sampleData> signalData;

	typedef sequence<octet> binaryFile;
};

interface frameWorkBase
{
	boolean running();
	boolean terminate();
};

interface patientFileEngine : frameWorkBase
{
	// Patient file binary file I/O
	boolean loadBinaryFile(in string fileName, out type::binaryFile fileData);
	boolean saveBinaryFile(in string fileName, in type::binaryFile fileData);
};
____________________________________________________________________________________

The DLL is created wihtout any problems, but when I link the application to 
the stubs-DLL, it results into undefined references to the servant members 
_narrow and release. The DLL and application are generated with the 
appropriate import/export class attributes (EXPORT_DLL).

Below is the output of the linking process.
____________________________________________________________________________________

 -LC:/ace/TAO/orbsvcs/orbsvcs -lACE.dll -lTAO.dll -lTAO_AnyTypeCode.dll -lTAO_Co
sNaming.dll -lTAO_ObjRefTemplate.dll -lTAO_PortableServer.dll -lws2_32 -lcommon
-leditor -lsharedwidget -lplotframework -L../../lib -lcorbaframework -lQtXml4 -l
QtOpenGL4 -lQtGui4 -lQtCore4
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0xf0c): 
undefined
reference to `_imp___ZN17patientFileEngine7_narrowEPN5CORBA6ObjectE'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0xf52): 
undefined
reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1044): 
undefined
 reference to `_imp___ZN17patientFileEngine7_narrowEPN5CORBA6ObjectE'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1091): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x12fc): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1356): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1833): 
undefined
 reference to `_imp___ZN17patientFileEngine7_narrowEPN5CORBA6ObjectE'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1874): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1bbe): 
undefined
 reference to `_imp___ZN17patientFileEngine7_narrowEPN5CORBA6ObjectE'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1c08): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1dc2): 
undefined
 reference to `_imp___ZN17patientFileEngine7_narrowEPN5CORBA6ObjectE'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x1e11): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x29b2): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x2aee): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'
./.obj-win32/modulepatientfile.o:modulepatientfile.cpp:(.text+0x2bb1): 
undefined
 reference to `_imp___ZN3TAO13Objref_TraitsI17patientFileEngineE7releaseEPS1_'

etc, etc
____________________________________________________________________________________

    REPEAT BY:
N/A

    SAMPLE FIX/WORKAROUND:
N/A