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Re: Linking against static libpq using Visual C++

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Thanks again for your answer.
For all those experiencing similar problems, the missing libraries were:
1) ws2_32.lib
2) secur32.lib (for the SSPI functions)
My code is compiled now without errors, but it seems to contain a buffer overflow. So there's still some work left for me ...

On Sun, Feb 27, 2011 at 19:00, Magnus Hagander wrote:
On Sun, Feb 27, 2011 at 18:01, Julia Jacobson<julia.jacobson@xxxxxxxx>  wrote:
Thanks for your answer. I was indeed using the static libpq version from the
installer.
I tried to compile my own one with Visual Studio 2010, but this caused a lot
of problems due to the fact that Visual Studio 2010 has changed the manifest
tool.
So I built a static version using Visual C++ 2008, which worked without
problems.
However, when building my application with Visual C++ 2008, the following
errors are lamented:

1>libpq.lib(fe-connect.obj) : error LNK2019: Unresolved external reference
"__imp__WSAIoctl@36" in Funktion "_setKeepalivesWin32".
1>libpq.lib(ip.obj) : error LNK2001: Unvresolved external symbol
"__imp__WSAIoctl@36".
1>libpq.lib(fe-connect.obj) : error LNK2019: Unresolved external reference
"__imp__DeleteSecurityContext@4" in Funktion "_closePGconn".
1>libpq.lib(fe-connect.obj) : error LNK2019: Unresolved external reference
"__imp__FreeCredentialsHandle@4" in Funktion "_closePGconn".
1>libpq.lib(ip.obj) : error LNK2019: Unresolved external reference
"__imp__WSASocketA@24" in Funktion "_pg_foreach_ifaddr".
1>libpq.lib(fe-auth.obj) : error LNK2019: Unresolved external reference
"_FreeContextBuffer@4" in Funktion "_pg_SSPI_continue".
1>libpq.lib(fe-auth.obj) : error LNK2019: Unresolved external reference
"_InitializeSecurityContextA@48" in Funktion "_pg_SSPI_continue".
1>libpq.lib(fe-auth.obj) : error LNK2019: Unresolved external reference
"_AcquireCredentialsHandleA@36" in Funktion "_pg_SSPI_startup".
1>C:\Users\Julia\Desktop\db_con\Debug\db_con.exe : fatal error LNK1120: 7
Unresolved external references.

Which libraries are missing now?

At least one of those is winsock, thus probably wsock2_32 or something
like that. The SSPI stuff is from some other system library, don't
know offhand which. You can look up the missing function in the MSDN
documentation, it should list which .lib is needed to access it.


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