在masm生成的asm.obj與vc++產生的vc.obj進行連接時 出現該錯誤 這是因爲vc模塊中與masm模塊中包含的默認庫不兼容造成的 由此產生該警告
windows的同一套API，有多線程版本，單線程版本之分...
在編譯的時候可以設置用哪個庫
如果沒有設置，windows不知道到底該用哪個庫，默認一個庫使用，所以給個警告。
設置/NODEFAULTLIB:library 後，在鏈接的時候就不鏈接忽略的庫，所以就沒警告了
也可以使用
#pragma warning( disable : 4098 )來忽該警告
Error Message
defaultlib 'library' conflicts with use of other libs; use /NODEFAULTLIB:library
You are trying to link with incompatible libraries.
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Note |
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The run-time libraries now contain directives to prevent mixing different types. You will 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 will get this warning. You should compile all source files to use the same run-time library. See the Use Run-Time Library (/MD, /MT, /LD) compiler options for more information. |
You can use the linker's /VERBOSE:LIB switch to determine which libraries the linker is searching. If you receive LNK4098 and want to create an executable file that uses, for example, the single-threaded, non-debug run-time libraries, use the /VERBOSE:LIB option to find out which libraries the linker is searching. The linker should print LIBC.lib and not LIBCMT.lib, MSVCRT.lib, LIBCD.lib, LIBCMTD.lib, or MSVCRTD.lib as the libraries searched. You can tell the linker to ignore the incorrect run-time libraries by using /NODEFAULTLIB for each library you want to ignore.
The table below shows which libraries should be ignored depending on which run-time library you want to use.
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To use this run-time library |
Ignore these libraries |
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Single-threaded (libc.lib) |
libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib |
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Multithreaded (libcmt.lib) |
libc.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib |
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Multithreaded using DLL (msvcrt.lib) |
libc.lib, libcmt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib |
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Debug Single-threaded (libcd.lib) |
libc.lib, libcmt.lib, msvcrt.lib, libcmtd.lib, msvcrtd.lib |
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Debug Multithreaded (libcmtd.lib) |
libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, msvcrtd.lib |
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Debug Multithreaded using DLL (msvcrtd.lib) |
libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, libcmtd.lib |
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:
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/NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:msvcrt.lib /NODEFAULTLIB:libcd.lib /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:msvcrtd.lib
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