["li" <li_shunda@xxxxxxx>]

I make a VC++ project to compile ethereal to a DLL, finally, I got this error

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single-threaded and multithreaded libraries

 

mfcs42d.lib(dllmodul.obj) : error LNK2005: _DllMain@12 already defined in MSVCRTD.lib(dllmain.obj)
mfcs42d.lib(dllmodul.obj) : warning LNK4006: _DllMain@12 already defined in MSVCRTD.lib(dllmain.obj); second definition ignored
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I see the MSDN explanation

One of the following may be a cause:

• The most common cause of this error is accidentally linking with both the single-threaded and multithreaded libraries. Ensure that the application project file includes only the appropriate libraries and that any third-party libraries have appropriately created single-threaded or multithreaded versions.
  
• The given symbol was a packaged function (created by compiling with /Gy) and was included in more than one file but was changed between compilations. Recompile all files that include the symbol.
  
• The given symbol was defined differently in two member objects in different libraries, and both member objects were used.
  
• An absolute was defined twice, with a different value in each definition.

whether I linking with both the single-threaded and multithreaded libraries or DLLmain define twice?

 

could you tell me how to solve it?

 

if you need source code, I will send it to you?

 

 

Frank Li