LIBCD.lib(crt0dat.obj) : error LNK2005: _exit already defined in msvcrtd.lib(MSVCRTD.dll)

本文介绍了解决在使用Visual Studio进行项目编译时遇到的链接错误LNK2005和LNK1169的方法。这些错误通常发生在多个库文件中定义了相同的函数或变量时。文章提供了详细的步骤来确保主程序和库文件使用一致的运行库。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >

类似链接错误:

LIBCD.lib(crt0dat.obj) : error LNK2005: _exit already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(crt0dat.obj) : error LNK2005: __exit already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(dbgheap.obj) : error LNK2005: _malloc already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(dbgheap.obj) : error LNK2005: _calloc already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(dbgheap.obj) : error LNK2005: _realloc already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(dbgheap.obj) : error LNK2005: _free already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(crt0init.obj) : error LNK2005: ___xc_z already defined in msvcrtd.lib(cinitexe.obj)
LIBCD.lib(crt0init.obj) : error LNK2005: ___xc_a already defined in msvcrtd.lib(cinitexe.obj)
LIBCD.lib(crt0init.obj) : error LNK2005: ___xi_z already defined in msvcrtd.lib(cinitexe.obj)
LIBCD.lib(crt0init.obj) : error LNK2005: ___xi_a already defined in msvcrtd.lib(cinitexe.obj)
LIBCD.lib(mbctype.obj) : error LNK2005: __getmbcp already defined in msvcrtd.lib(MSVCRTD.dll)
LIBCD.lib(winxfltr.obj) : error LNK2005: __XcptFilter already defined in msvcrtd.lib(MSVCRTD.dll)
msvcrtd.lib(MSVCRTD.dll) : error LNK2005: __setmbcp already defined in LIBCD.lib(mbctype.obj)
LIBCD.lib(crt0dat.obj) : warning LNK4006: _exit already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(crt0dat.obj) : warning LNK4006: __exit already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(dbgheap.obj) : warning LNK4006: _malloc already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(dbgheap.obj) : warning LNK4006: _calloc already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(dbgheap.obj) : warning LNK4006: _realloc already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(dbgheap.obj) : warning LNK4006: _free already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(crt0init.obj) : warning LNK4006: ___xc_z already defined in msvcrtd.lib(cinitexe.obj); second definition ignored
LIBCD.lib(crt0init.obj) : warning LNK4006: ___xc_a already defined in msvcrtd.lib(cinitexe.obj); second definition ignored
LIBCD.lib(crt0init.obj) : warning LNK4006: ___xi_z already defined in msvcrtd.lib(cinitexe.obj); second definition ignored
LIBCD.lib(crt0init.obj) : warning LNK4006: ___xi_a already defined in msvcrtd.lib(cinitexe.obj); second definition ignored
LIBCD.lib(mbctype.obj) : warning LNK4006: __getmbcp already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
LIBCD.lib(winxfltr.obj) : warning LNK4006: __XcptFilter already defined in msvcrtd.lib(MSVCRTD.dll); second definition ignored
msvcrtd.lib(MSVCRTD.dll) : warning LNK4006: __setmbcp already defined in LIBCD.lib(mbctype.obj); second definition ignored
   Creating library Debug/APathFindTest.lib and object Debug/APathFindTest.exp
LINK : warning LNK4098: defaultlib "msvcrtd.lib" conflicts with use of other libs; use /NODEFAULTLIB:library
LINK : warning LNK4098: defaultlib "LIBCD" conflicts with use of other libs; use /NODEFAULTLIB:library
Debug/APathFindTest.exe : fatal error LNK1169: one or more multiply defined symbols found
Error executing link.exe.

 

原因与修改办法:

主程序和lib所使用的运行库不一致,project->setting-> Generation->Use MFC Static Library

重新编译LIB,project->setting-> Generation->Use MFC in a Shared DLL,不要把MFC的DLL做为静态库

评论 1
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值