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error LNK2005:  operator new already defined in LIBCMT.lib

Posted on 2000-04-24
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Last Modified: 2013-11-20
I'm trying to compile my static MFC multithreaded app and keep getting the linker error:
-----------------
nafxcw.lib(afxmem.obj) : error LNK2005: "void * __cdecl operator new(unsigned int)" (??2@YAPAXI@Z) already defined in LIBCMT.lib(new.obj)
nafxcw.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) already defined in LIBCMT.lib(delete.obj)
      Found "public: void * __thiscall
-----------------

I put the linker to verbose and verified it is finding the new operator in both nafxcw.lib and libcmt.lib.

Any ideas how to correct this? work arounds?

BTW-Using MFC and STL, everything static linked.

Cheers,
Todd
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Question by:toddmoore
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Accepted Solution

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mikeblas earned 400 total points
ID: 2746389
You're causing the linker to see the MFC libraries and the standard C libraries in the wrong order. There's dozens of ways to do that, and there are two or three ways to actually fix the problem.

All the fixes (and a good description of the problem) are outlined in the Microsoft KnowledgeBase.  Visit http://search.support.microsoft.com/kb/ to start a search. See the KnowledgeBase article Q148652 for the information specific to your question.

..B ekiM

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Author Comment

by:toddmoore
ID: 2748218
Thanks, I made sure every cpp file included stdafx and it fixed the problem.
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