Warning LNK4098 : defaultlib "library" conflicts with use of other libs; use /NODEFAULTLIB:library

Author Jeff     2005 – 11 - 25

关键字:Warning LNK4098 
defaultlib "library" conflicts with use of other libs; use /NODEFAULTLIB:library

 

 

 

工程一大,包含的头文件和库也就多了,冲突一时是不可避免的。 不过还好, 只是Warning,并不影响整个工程的编译和运行。但是一些项目就要求尽量不出现Warning,因为你不知道将来项目的Bug会不会是由此而引起。严格,未雨绸缪,总是一件好事。谁也不想将来的某个时候去Debug N年前的玩意。 痛苦啊~~

 

 

 

MSDN上的解释为:

You are trying to link with incompatible libraries.

Important   The run-time libraries now contain directives to prevent mixing different types. You’ll receive this warning if you try to use different types or debug and non-debug versions of the run-time library in the same program. For example, if you compiled one file to use one kind of run-time library and another file to use another kind (for example, single-threaded versus multithreaded) and tried to link them, you’ll get this warning. You should compile all source files to use the same run-time library.

 

 

 

总之,一句话,lib之间有冲突。需要删除导入的一些libs

版 本

类 型

使用的library

被忽略的library

Release

单线程

libc.lib

libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib

多线程

libcmt.lib

libc.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib

使用DLL的多线程

msvcrt.lib

libc.lib, libcmt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib

Debug

单线程

libcd.lib

libc.lib, libcmt.lib, msvcrt.lib, libcmtd.lib, msvcrtd.lib

多线程

libcmtd.lib

libc.lib, libcmt.lib, msvcrt.lib, libcmtd.lib, msvcrtd.lib

使用DLL的多线程

msvcrtd.lib

libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib

 

 

 

例如编译Release版本的单线程的工程,在linker的命令行加入如下的参数:

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

当然,通过VC6.0的开发环境也可以配置。选择Project -> Setting,出现Project Setting对话框,单击Link标签,在Category下拉菜单中选择Input,在下方的Ignore libraries: 输入框中输入“被忽略的library”框中对应的libs。输入时注意当前Build是什么版本,libs之间用“,”隔开。“Ingore all default libraries”不能勾选。

 

 

 

你可能感兴趣的:(多线程,File,dll,library,Types,linker)