Link errors while building VC6 project using VC++ Toolkit 2003

[Leith Bade]

I have been trying to use the new Visual C++ Toolkit 2003 with the VC6 IDE
I set up the executable, inlcude, and library directories to point to the new compilers
I had to fix a few errors in the MFC6 <afxtempl.h> to get it to compile with the better standards confomance (mainly omitted typename, and lazyness with specialized templates - using BASE_CLASS & TYPE instead of CObList & CObList*)
Now I get some strange linker errors, and I don't know much about linker errors :-

Here's my linker output (for debug)
--------------------Configuration: WinCPUID - Win32 Debug-------------------
Linking..
Microsoft (R) Incremental Linker Version 7.10.305
Copyright (C) Microsoft Corporation. All rights reserved
/subsystem:windo ws /incremental:yes "/pdb:Debug/WinCPUID.pdb" /debug /machine:I386 "/out:Debug/WinCPUID.exe"
".\Debug\Clouds .obj"
".\Debug\CPUDat a.obj"
".\Debug\Custom PropSheet.obj"
".\Debug\file_v er.obj"
".\Debug\PropPa geAbout.obj"
".\Debug\PropPa geCPUID.obj"
".\Debug\PropPa geInfo.obj"
".\Debug\StdAfx .obj"
".\Debug\WinCPU ID.obj"
".\Debug\WinCPU ID.res"
PropPageAbout.o bj : error LNK2001: unresolved external symbol __RTC_CheckEs
PropPageCPUID.o bj : error LNK2001: unresolved external symbol __RTC_CheckEs
PropPageInfo.ob j : error LNK2001: unresolved external symbol __RTC_CheckEs
WinCPUID.obj : error LNK2001: unresolved external symbol __RTC_CheckEs
Clouds.obj : error LNK2019: unresolved external symbol __RTC_CheckEsp referenced in function "public: __thiscall CCloudsCtrl::CC loudsCtrl(void) " (??0CCloudsCtrl @@QAE@XZ
CPUData.obj : error LNK2001: unresolved external symbol __RTC_CheckEs
CustomPropSheet .obj : error LNK2001: unresolved external symbol __RTC_CheckEs
file_ver.obj : error LNK2001: unresolved external symbol __RTC_CheckEs
PropPageAbout.o bj : error LNK2001: unresolved external symbol __RTC_Shutdow
PropPageCPUID.o bj : error LNK2001: unresolved external symbol __RTC_Shutdow
PropPageInfo.ob j : error LNK2001: unresolved external symbol __RTC_Shutdow
WinCPUID.obj : error LNK2001: unresolved external symbol __RTC_Shutdow
Clouds.obj : error LNK2001: unresolved external symbol __RTC_Shutdow
CPUData.obj : error LNK2019: unresolved external symbol __RTC_Shutdown referenced in function "public: int __thiscall CCPUData::Updat e(void)" (?Update@CCPUDa ta@@QAEHXZ
CustomPropSheet .obj : error LNK2001: unresolved external symbol __RTC_Shutdow
file_ver.obj : error LNK2001: unresolved external symbol __RTC_Shutdow
PropPageAbout.o bj : error LNK2001: unresolved external symbol __RTC_InitBas
PropPageCPUID.o bj : error LNK2001: unresolved external symbol __RTC_InitBas
PropPageInfo.ob j : error LNK2001: unresolved external symbol __RTC_InitBas
WinCPUID.obj : error LNK2001: unresolved external symbol __RTC_InitBas
Clouds.obj : error LNK2001: unresolved external symbol __RTC_InitBas
CPUData.obj : error LNK2001: unresolved external symbol __RTC_InitBas
CustomPropSheet .obj : error LNK2001: unresolved external symbol __RTC_InitBas
file_ver.obj : error LNK2001: unresolved external symbol __RTC_InitBas
PropPageAbout.o bj : error LNK2019: unresolved external symbol @_RTC_CheckStac kVars@8 referenced in function "public: __thiscall CPropPageAbout: :CPropPageAbout (void)" (??0CPropPageAb out@@QAE@XZ
PropPageCPUID.o bj : error LNK2001: unresolved external symbol @_RTC_CheckStac kVars@
WinCPUID.obj : error LNK2001: unresolved external symbol @_RTC_CheckStac kVars@
Clouds.obj : error LNK2019: unresolved external symbol @_RTC_CheckStac kVars@8 referenced in function "protected: virtual void __thiscall CCloudsCtrl::Pr eSubclassWindow (void)" (?PreSubclassWi ndow@CCloudsCtr l@@MAEXXZ
CPUData.obj : error LNK2001: unresolved external symbol @_RTC_CheckStac kVars@
CustomPropSheet .obj : error LNK2001: unresolved external symbol @_RTC_CheckStac kVars@
file_ver.obj : error LNK2019: unresolved external symbol @_RTC_CheckStac kVars@8 referenced in function "public: __thiscall CFileVersionInf o::CFileVersion Info(void)" (??0CFileVersio nInfo@@QAE@XZ
Clouds.obj : error LNK2019: unresolved external symbol __ftol2 referenced in function "protected: void __thiscall CCloudsCtrl::Ge neratePlasma(in t * const)" (?GeneratePlasm a@CCloudsCtrl@@ IAEXQAH@Z
file_ver.obj : error LNK2019: unresolved external symbol _VerQueryValueA @16 referenced in function "public: int __thiscall CFileVersionInf o::ReadVersionI nfo(class CString const &)" (?ReadVersionIn fo@CFileVersion Info@@QAEHABVCS tring@@@Z)
file_ver.obj : error LNK2019: unresolved external symbol _GetFileVersion InfoA@16 referenced in function "public: int __thiscall CFileVersionInf o::ReadVersionI nfo(class CString const &)" (?ReadVersionIn fo@CFileVersion Info@@QAEHABVCS tring@@@Z)
file_ver.obj : error LNK2019: unresolved external symbol _GetFileVersion InfoSizeA@8 referenced in function "public: int __thiscall CFileVersionInf o::ReadVersionI nfo(class CString const &)" (?ReadVersionIn fo@CFileVersion Info@@QAEHABVCS tring@@@Z)
Debug/WinCPUID.exe : fatal error LNK1120: 8 unresolved externals
Error executing link.exe.

For Release:
--------------------Configuration: WinCPUID - Win32 Release--------------------
Linking...
Clouds.obj : error LNK2019: unresolved external symbol __ftol2 referenced in function "protected: int __thiscall CCloudsCtrl::Ge tRandomValue(in t,int)" (?GetRandomValu e@CCloudsCtrl@@ IAEHHH@Z)
Clouds.obj : error LNK2019: unresolved external symbol "void __cdecl operator delete[](void *)" (??_V@YAXPAX@Z) referenced in function "public: virtual __thiscall CCloudsCtrl::~C CloudsCtrl(void )" (??1CCloudsCtrl @@UAE@XZ)
WinCPUID.obj : error LNK2001: unresolved external symbol "void __cdecl operator delete[](void *)" (??_V@YAXPAX@Z)
Clouds.obj : error LNK2019: unresolved external symbol "void * __cdecl operator new[](unsigned int)" (??_U@YAPAXI@Z) referenced in function "protected: virtual void __thiscall CCloudsCtrl::Pr eSubclassWindow (void)" (?PreSubclassWi ndow@CCloudsCtr l@@MA
EXXZ)
file_ver.obj : error LNK2001: unresolved external symbol "void * __cdecl operator new[](unsigned int)" (??_U@YAPAXI@Z)
WinCPUID.obj : error LNK2001: unresolved external symbol "void * __cdecl operator new[](unsigned int)" (??_U@YAPAXI@Z)
Release/WinCPUID.exe : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.

How can I fix these?

---
Leith Bade
Project Admin
WinCPUID
leithalweapons@ msn.com
wincpuid.source forge.net

[David Lowndes]

Re: Link errors while building VC6 project using VC++ Toolkit 2003

>I have been trying to use the new Visual C++ Toolkit 2003 with the VC6 IDE.[color=blue]
>I set up the executable, inlcude, and library directories to point to the new compilers.[/color]
[color=blue]
>Now I get some strange linker errors, and I don't know much about linker errors :-(
>
>Here's my linker output (for debug):
>..
>PropPageAbout. obj : error LNK2001: unresolved external symbol __RTC_CheckEsp[/color]

Looks like you might still be linking with the V6 libraries.

Dave

[alixia]

Re: Link errors while building VC6 project using VC++ Toolkit 2003


I´m still having the problem:
error LNK2019: unresolved external symbol __ftol2

I´ve proved to put the next lines of code in my c file:

#if (_MSC_VER >= 1300) && (WINVER < 0x0500)
//VC7 or later, building with pre-VC7 runtime libraries
extern "C" long _ftol( double ); //defined by VC6 C libs
extern "C" long _ftol2( double dblSource ) { return _ftol( dblSource );
}
#endif

but now the problem is the string "C", it isn´t recognized by the
compiler maybe. I´ve installed the microsotf c++ 2003 toolkit.
I don´t understand.



--
alixia
------------------------------------------------------------------------
Posted via http://www.codecomments.com
------------------------------------------------------------------------

[Jochen Kalmbach [MVP]]

Re: Link errors while building VC6 project using VC++ Toolkit 2003

Hi alixia!
[color=blue]
> #if (_MSC_VER >= 1300) && (WINVER < 0x0500)
> //VC7 or later, building with pre-VC7 runtime libraries
> extern "C" long _ftol( double ); //defined by VC6 C libs
> extern "C" long _ftol2( double dblSource ) { return _ftol( dblSource );
> }
> #endif
>
> but now the problem is the string "C", it isn´t recognized by the
> compiler maybe. I´ve installed the microsotf c++ 2003 toolkit.
> I don´t understand.[/color]

Why do you query WINVER?
If it is only depended on the MS-VC-Version you should only query _MSC_VER!

But to comply with C-files, you should change it to:


#if _MSC_VER >= 1300
//VC7 or later, building with pre-VC7 runtime libraries
#ifdef __cplusplus
extern "C" {
#endif
long _ftol( double ); //defined by VC6 C libs
long _ftol2( double dblSource ) { return _ftol( dblSource );
#ifdef __cplusplus
}
#endif
#endif


--
Greetings
Jochen

My blog about Win32 and .NET

http://blog.kalmbachnet.de/