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[win32] error LNK2019: unresolved external symbol impxxx

2010-12-07 17:05:15| 分类： win32 | 标签： |举报 |字号大中小订阅

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很久没写 win32 程序了，每次写都要碰到一些问题。。。。

出现这个 "error LNK2019: unresolved external symbol __imp__xxx"。MSDN给的解释：

When compiling with /MD, a reference to "func" in your source becomes a reference "__imp__func" in the object since all the run-time is now held within a DLL. If you try to link with the static libraries LIBC.lib or LIBCMT.lib, you will get LNK2001 on __imp__func. If you try to link with MSVCxx.lib when compiling without /MD you will not always get LNK2001, but you will likely have other problems.

没说清楚，其实是声明了"__declspec(dllimport)"的函数，编译器尝试链接 __imp__funcname()，导致找不到 symbol。

这里有一个具体的例子：

http://efreedom.com/Question/1-3704374/Linking-Error-LNK2019-MSVC-Unresolved-Symbols-Imp-Prefix-Static-Lib

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