cbc not linking on windows with MS Visual Studio

[svigerske]

Issue created by migration from Trac.

Original creator: @jpfasano

Original creation time: 2007-08-01 21:02:21

Assignee: somebody

Version:

The Trunk version CoinSolve.cpp (cbcSolve project) does not link on window with MS Visual Studio Version 8. The link error is

------ Build started: Project: cbcSolve, Configuration: Release Win32 ------
Linking...
MyMessageHandler.obj : error LNK2005: "public: __thiscall MyMessageHandler::MyMessageHandler(void)" (??0MyMessageHandler`@``@`QAE`@`XZ) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: __thiscall MyMessageHandler::MyMessageHandler(class CoinMessageHandler const &)" (??0MyMessageHandler`@``@`QAE`@`ABVCoinMessageHandler`@``@``@`Z) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: virtual __thiscall MyMessageHandler::~MyMessageHandler(void)" (??1MyMessageHandler`@``@`UAE`@`XZ) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: virtual int __thiscall MyMessageHandler::print(void)" (?print`@`MyMessageHandler`@``@`UAEHXZ) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: __thiscall MyMessageHandler::MyMessageHandler(class MyMessageHandler const &)" (??0MyMessageHandler`@``@`QAE`@`ABV0`@``@`Z) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: class MyMessageHandler & __thiscall MyMessageHandler::operator=(class MyMessageHandler const &)" (??4MyMessageHandler`@``@`QAEAAV0`@`ABV0`@``@`Z) already defined in CoinSolve.obj
MyMessageHandler.obj : error LNK2005: "public: virtual class CoinMessageHandler * __thiscall MyMessageHandler::clone(void)const " (?clone`@`MyMessageHandler`@``@`UBEPAVCoinMessageHandler`@``@`XZ) already defined in CoinSolve.obj
.\Release/cbcSolve.exe : fatal error LNK1169: one or more multiply defined symbols found
Build log was saved at "file://d:\COIN\Coin-Cbc-All\trunk\Cbc\MSVisualStudio\v8\cbcSolve\Release\BuildLog.htm"
cbcSolve - 8 error(s), 0 warning(s)

It seems that this link problem was probably introduced on 7/31 with the change https://projects.coin-or.org/Cbc/changeset/715

To recreate:

1. svn checkout https://projects.coin-or.org/svn/Cbc/trunk coin-Cbc-trunk

2. open the file coin-Cbc-trunk/Cbc/MSVisualStudio/v8/Cbc.sln with
   visual studio C++ express edition.

3. From the menu bar select "Build" - "Batch Build", and then rebuild
   everything.

[svigerske]

Comment by @jjhforrest created at 2007-08-02 13:09:22

Made conditional and changed to MyMessageHandler2

[svigerske]

Comment by @jjhforrest created at 2007-08-02 13:09:22

Resolution: fixed