今天在編譯vc工程時(shí)出現(xiàn)的錯(cuò)誤，并在網(wǎng)上找到了解決方法，有類似問(wèn)題的請(qǐng)參照
本人在編譯VC6.0工程時(shí)，遇到如下錯(cuò)誤：
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _getenv   already   defined   in   LIBCMTD.lib(getenv.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _free   already   defined   in   LIBCMTD.lib(dbgheap.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _calloc   already   defined   in   LIBCMTD.lib(dbgheap.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _malloc   already   defined   in   LIBCMTD.lib(dbgheap.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _printf   already   defined   in   xlibgui.lib(PRINTF.OBJ)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _fflush   already   defined   in   LIBCMTD.lib(fflush.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _sprintf   already   defined   in   LIBCMTD.lib(sprintf.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _strncpy   already   defined   in   LIBCMTD.lib(strncpy.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _atoi   already   defined   in   LIBCMTD.lib(atox.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _realloc   already   defined   in   LIBCMTD.lib(dbgheap.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _signal   already   defined   in   LIBCMTD.lib(winsig.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   __controlfp   already   defined   in   LIBCMTD.lib(ieee87.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   error   LNK2005:   _exit   already   defined   in   LIBCMTD.lib(crt0dat.obj)
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _getenv   already   defined   in   LIBCMTD.lib(getenv.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _free   already   defined   in   LIBCMTD.lib(dbgheap.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _calloc   already   defined   in   LIBCMTD.lib(dbgheap.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _malloc   already   defined   in   LIBCMTD.lib(dbgheap.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _printf   already   defined   in   xlibgui.lib(PRINTF.OBJ);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _fflush   already   defined   in   LIBCMTD.lib(fflush.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _sprintf   already   defined   in   LIBCMTD.lib(sprintf.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _strncpy   already   defined   in   LIBCMTD.lib(strncpy.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _atoi   already   defined   in   LIBCMTD.lib(atox.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _realloc   already   defined   in   LIBCMTD.lib(dbgheap.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _signal   already   defined   in   LIBCMTD.lib(winsig.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   __controlfp   already   defined   in   LIBCMTD.lib(ieee87.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _exit   already   defined   in   LIBCMTD.lib(crt0dat.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _fclose   already   defined   in   LIBCMTD.lib(fclose.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _fopen   already   defined   in   LIBCMTD.lib(fopen.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   __stricmp   already   defined   in   LIBCMTD.lib(stricmp.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _fprintf   already   defined   in   LIBCMTD.lib(fprintf.obj);   second   definition   ignored
MSVCRTD.lib(MSVCRTD.dll)   :   warning   LNK4006:   _ceil   already   defined   in   LIBCMTD.lib(ceil.obj);   second   definition   ignored
      Creating   library   Debug/shm_ext_sim.lib   and   object   Debug/shm_ext_sim.exp
LINK   :   warning   LNK4098:   defaultlib   "MSVCRTD"   conflicts   with   use   of   other   libs;   use   /NODEFAULTLIB:library
LINK   :   warning   LNK4098:   defaultlib   "MSVCRT"   conflicts   with   use   of   other   libs;   use   /NODEFAULTLIB:library
Debug/shm_ext_sim.exe   :   fatal   error   LNK1169:   one   or   more   multiply   defined   symbols   found
Error   executing   link.exe.

shm_ext_sim.exe   -   37   error(s),   86   warning(s)
 
 
原因及解決方法：
主程序和lib所使用的運(yùn)行庫(kù)不一致，project->setting-> Generation->Use MFC Static Library



    

        

            
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For example, if you received this warning and you want to create an executable file that uses the non-debug, single-threaded version of the run-time libraries, you could use the following options with the linker: 

/NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:libcd.lib /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:msvcrtd.lib 

或者這樣：For example, if you received this warning and you want to create an executable file that uses the non-debug, single-threaded version of the run-time libraries, you could use the following options with the linker:

/NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:libcd.lib /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB寫程序看到 warning，感覺(jué)不爽。 這個(gè)警告在 link option 中 加入 對(duì)應(yīng)的 /NODEFAULTLIB:xxx.lib 　　就ok了