VC.Net, LNK2005 Errors

LNK2005 Errors

Author	Message
Naveen K Kohl #1 / 5	LNK2005 Errors I have a solution consiting of about dozen VC++ projects. Projects are either console apps or DLLs. No MFC. I tried to move the projects to VS.Net2003 to use the latest C++ compiler. But couple of projects are stuck at LNK2005 compile time errors. Here what I have done so far.. 1. Opened VC6 solution in VS.Net2003 IDE 2. Accepted project conversion from VC6 format to VC7.1 No changes are made to any project settings. 3. Did a rebuild. 4. I get the following errors error LNK2005: _tolower already defined in MSVCRTD.lib(MSVCR71D.dll) error LNK2005: __CppxcptFilter already defined in MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _exit already defined in MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _getenv already defined in MSVCRTD.lib(MSVCR71D.dll) error LNK2005: __xc_z already defined in MSVCRTD.lib(cinitexe.obj) This error list goes on and on.. What needs to be changed for VC7.1 builds. Thanks, Naveen
Sun, 09 Oct 2005 00:57:25 GMT

Dale Lam #2 / 5	LNK2005 Errors I think you are double linking.. sort of. The old version of the CRT is being linked in, as is the new one. They are probably being duplicated in your linker settings. This can happen if you are manually including, say, the old one, but the new one is implied during linkage unless you specifically exclude it from the build. Might want to check that avenue out and see if it gets you anywhere. hth, -Dale Quote: > I have a solution consiting of about dozen VC++ projects. Projects are > either console apps or DLLs. No MFC. I tried to move the projects to > VS.Net2003 to use the latest C++ compiler. But couple of projects are stuck > at LNK2005 compile time errors. Here what I have done so far.. > 1. Opened VC6 solution in VS.Net2003 IDE > 2. Accepted project conversion from VC6 format to VC7.1 No changes are made > to any project settings. > 3. Did a rebuild. > 4. I get the following errors > error LNK2005: _tolower already defined in MSVCRTD.lib(MSVCR71D.dll) > error LNK2005: __CppxcptFilter already defined in MSVCRTD.lib(MSVCR71D.dll) Quote: > error LNK2005: _exit already defined in MSVCRTD.lib(MSVCR71D.dll) > error LNK2005: _getenv already defined in MSVCRTD.lib(MSVCR71D.dll) > error LNK2005: __xc_z already defined in MSVCRTD.lib(cinitexe.obj) > This error list goes on and on.. > What needs to be changed for VC7.1 builds. > Thanks, > Naveen
Sun, 09 Oct 2005 02:34:24 GMT

Jochen Kalmbac #3 / 5	LNK2005 Errors Quote: > 1. Opened VC6 solution in VS.Net2003 IDE > 2. Accepted project conversion from VC6 format to VC7.1 No changes are > made to any project settings. > 3. Did a rebuild. > 4. I get the following errors > error LNK2005: _tolower already defined in MSVCRTD.lib(MSVCR71D.dll) > error LNK2005: __CppxcptFilter already defined in > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _exit already defined in > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _getenv already defined in > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: __xc_z already defined in > MSVCRTD.lib(cinitexe.obj) > This error list goes on and on.. The problem is that you are linking to some LIBs which where compiled with VS6 (or before). First upgrade this LIBs then you can upgrade you EXE/DLL also. -- Greetings Jochen Do you need a memory-leak finder ? http://www.codeproject.com/useritems/leakfinder.asp
Sun, 09 Oct 2005 12:50:28 GMT

Naveen K Kohl #4 / 5	LNK2005 Errors Thats the first thing that i did. I recompiled all the dependencies with VC++7.1 And this stage there is nothing left to be recompiled. But i will look into it again. Thanks. Naveen Quote: > > 1. Opened VC6 solution in VS.Net2003 IDE > > 2. Accepted project conversion from VC6 format to VC7.1 No changes are > > made to any project settings. > > 3. Did a rebuild. > > 4. I get the following errors > > error LNK2005: _tolower already defined in MSVCRTD.lib(MSVCR71D.dll) > > error LNK2005: __CppxcptFilter already defined in > > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _exit already defined in > > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: _getenv already defined in > > MSVCRTD.lib(MSVCR71D.dll) error LNK2005: __xc_z already defined in > > MSVCRTD.lib(cinitexe.obj) > > This error list goes on and on.. > The problem is that you are linking to some LIBs which where compiled with > VS6 (or before). > First upgrade this LIBs then you can upgrade you EXE/DLL also. > -- > Greetings > Jochen > Do you need a memory-leak finder ? > http://www.codeproject.com/useritems/leakfinder.asp
Sun, 09 Oct 2005 22:02:00 GMT

Jochen Kalmbac #5 / 5	LNK2005 Errors Quote: > Thats the first thing that i did. I recompiled all the dependencies > with VC++7.1 And this stage there is nothing left to be recompiled. > But i will look into it again. Just enable the Verbose output of the linker in the linker settings. Then you will see who is referencing the old DLLs... -- Greetings Jochen Do you need a memory-leak finder ? http://www.codeproject.com/useritems/leakfinder.asp
Mon, 10 Oct 2005 01:55:09 GMT

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