LNK2005：找到使用/MT构建的模块
我正在尝试构建 C++ 项目（mapserver）。这取决于其他一些项目。
当我运行 nmake 时，它显示了许多这样的错误：
...
LIBCMTD.lib(getenv.obj) : error LNK2005: _getenv already defined in MSVCRT.lib(MSVCR90.dll)
LIBCMTD.lib(tolower.obj) : error LNK2005: _tolower already defined in MSVCRT.lib(MSVCR90.dll)
LIBCMTD.lib(fflush.obj) : error LNK2005: _fflush already defined in MSVCRT.lib(MSVCR90.dll)
MSVCRT.lib(MSVCR90.dll) : error LNK2005: __strnicmp already defined in LIBCMTD.lib(strnicmp.obj)
...
我知道这是由 /MD 和 /MT 选项与项目不同时引起的来投影。
我检查了所有项目的构建文件，只发现一个带有 /MT 的文件。我将其更改为 /MD 并重建它，但错误仍然存在。
如何找到导致此错误的库？
感谢大家！
PS项目列表：
curl-7.24.0
expat-2.0.1
freetype-2.4.8
gdal-1.9.0
gdwin32
jpeg-6b
lpng158
mapserver <-- main
postgresql-8.4.9
proj-4.7.0
regex-0.12
zlib
I'm trying to build C++ project (mapserver). It depends on some other projects.
When I run nmake, it shows many errors like this:
...
LIBCMTD.lib(getenv.obj) : error LNK2005: _getenv already defined in MSVCRT.lib(MSVCR90.dll)
LIBCMTD.lib(tolower.obj) : error LNK2005: _tolower already defined in MSVCRT.lib(MSVCR90.dll)
LIBCMTD.lib(fflush.obj) : error LNK2005: _fflush already defined in MSVCRT.lib(MSVCR90.dll)
MSVCRT.lib(MSVCR90.dll) : error LNK2005: __strnicmp already defined in LIBCMTD.lib(strnicmp.obj)
...
I know it is caused by /MD and /MT options when they differs from project to project.
I checked all project's build files and have found only one with /MT. I changed it to /MD and rebuilt it, but error remained.
How to find a library caused this error?
Thanks for all!
P.S. Project list:
curl-7.24.0
expat-2.0.1
freetype-2.4.8
gdal-1.9.0
gdwin32
jpeg-6b
lpng158
mapserver <-- main
postgresql-8.4.9
proj-4.7.0
regex-0.12
zlib
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查看此知识库
http://msdn.microsoft。 com/en-us/library/6wtdswk0(v=vs.71).aspx
根据您尝试执行的构建使用忽略库行。如果您正在使用的库需要该库，您将得到该库的未找到符号，您可以修复它。
此外，您还可以使用 dumpbin 来找出库将尝试链接的内容。
Look at this KB
http://msdn.microsoft.com/en-us/library/6wtdswk0(v=vs.71).aspx
Use the ignore libraries line based on the build you are trying to do. If a library you are using needs that library, you will get a Symbol not Found for that library and you can fix it.
Also, you can use
dumpbinto find out what a library will try to link to.结果发现解决方案非常简单。
我在主程序使用的每个库上运行 dumpbin 。其中之一是用
/MT选项编译的。PS 有趣的是，构建文件不包含
/MT或/MTd选项。相反，它包含中
makefile
在我替换它的
，并且全部开始工作。
The solution turned out very simple.
I run
dumpbinon each library that main program uses. One of them was compiled withthat means
/MToption.P.S. It is interesting, that build file didn't contain
/MTor/MTdoptions. Instead, it includedwith
The makefile contained
I replaced it with
and all begun to work.