[GD-Windows] MFC and libc linker error

[Jacob T. (C. D. Ltd) <Ja...@Co...>]

Developing simple MFC app and it is all going fine, just added a load of our
common source files into the project and now getting the following errors.

nafxcwd.lib(afxmem.obj) : error LNK2005: "void * __cdecl operator
new(unsigned int)" (??2@YAPAXI@Z) already defined in LIBCMTD.lib(new.obj)

nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void
*)" (??3@YAXPAX@Z) already defined in LIBCMTD.lib(dbgdel.obj)

Now I have no idea why MSVC can't sort out which new to use, I don't think I
am explictly telling it to use the libc version ?

I have had this before but can't remember how I fixed it.  The last time it
happened I deleted all the source files and then added them in 1 by 1 and it
all worked.  I have tried doing that this time but to no avail.

Any suggestions ?

Cheers

Jake