Question

我使用Windows 7 64位上的CMake（2.8.11.2）为openmpi 1.4.3软件包配置并生成了nmake构建文件。我正在使用“VS2012 x64交叉工具命令提示符”。不幸的是，第一个DLL目标的链接步骤失败，因为一些traget库被添加到带有'/ l'前缀的链接命令行，这会导致链接器发出警告，但结果是未解析的外部符号，因为所需的库有被忽略了。即。

Linking C shared library ..\liblibopen-pal.dll
    cd C:\home\re04179\thirdparty\openmpi-1.4.3-build\vc11\x64\release\opal
    "C:\Program Files (x86)\CMake 2.8\bin\cmake.exe" -E vs_link_dll C:\PROGRA~2\MICROS~1.0\VC\bin\X86_AM~1\link.exe /nologo @CMakeFiles\libopen-pal.dir\objects1.rsp @C:\Users\RE04179\AppData\Local\Temp\nm1B31.tmp
Visual Studio Non-Incremental Link
LINK:
C:\PROGRA~2\MICROS~1.0\VC\bin\X86_AM~1\link.exe /nologo @CMakeFiles\libopen-pal.dir\objects1.rsp /out:..\liblibopen-pal.dll /implib:..\liblibopen-pal.dll.a /pdb:C:\home\re04179\thirdparty\openmpi-1.4.3-build\vc11\x64\release\liblibopen-pal.pdb /dll /version:0.0 /machine:x64 /INCREMENTAL:NO -lWs2_32.lib -lshlwapi.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib /MANIFEST 
LINK : warning LNK4044: unrecognized option '/lWs2_32.lib'; ignored

LINK : warning LNK4044: unrecognized option '/lshlwapi.lib'; ignored

   Creating library ..\liblibopen-pal.dll.a and object ..\liblibopen-pal.dll.exp

win32.obj : error LNK2019: unresolved external symbol __imp_WSAGetLastError referenced in function win32_insert

evutil.obj : error LNK2001: unresolved external symbol __imp_WSAGetLastError

if.obj : error LNK2001: unresolved external symbol __imp_WSAGetLastError

win32.obj : error LNK2019: unresolved external symbol __imp_WSACloseEvent referenced in function win32_del

win32.obj : error LNK2019: unresolved external symbol __imp_WSACreateEvent referenced in function win32_recompute_event

win32.obj : error LNK2019: unresolved external symbol __imp_WSAEnumNetworkEvents referenced in function win32_socket_event_callback

win32.obj : error LNK2019: unresolved external symbol __imp_WSAEventSelect referenced in function win32_del

win32.obj : error LNK2019: unresolved external symbol __imp_WSAHtonl referenced in function win32_insert

等

编辑文件'C：\ Program Files（x86）\ CMake 2.8 \ share \ cmake-2.8 \ Modules \ Platform \ Windows-MSVC.cmake'的第156行

set(CMAKE_C_STANDARD_LIBRARIES_INIT "kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib")

到

set(CMAKE_C_STANDARD_LIBRARIES_INIT "ws2_32.lib shlwapi.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib")

，即显式添加所需的库，允许我成功构建包，但链接器警告仍然存在，这当然只是一种解决办法，但没有令人满意的解决方案。

Answer 1

您应该将库添加到openmpi cmake文件中，而不是更改CMake文件。并且您永远不应该更改CMake分发文件，而是修复您正在尝试构建的库附带的文件。大多数时候它是图书馆的bug而不是CMake的。

Visual Studio 2012 / vc11上的CMake / NMake链接错误

1 个答案: