[Winpcap-users] Trying to build wpcap.dll

Chris Morgan chmorgan at gmail.com
Fri Jan 22 06:28:42 PST 2010

I had the same issue recently but because a problem didn't reproduce I
didn't have a need to continue debugging it.

I seem to recall that it may be due to an older winsock included
before winsock2 and some defines that cause the proper headers to
appear to already be included. I got the impression that it was
intended to protect backwards compatibility. I can't recall much more
though. It would be great if this issue were fixed though since I may
need to go back to debugging and could really use to have a debug
build. One of the winpcap devs sent me the PDBs but it would have been
easier to build it directly and it would have saved their time.


On Jan 22, 2010, at 9:24 AM, "SANTINI, Rafael" <rafael at santini.eti.br>

> Hi,
> I'm trying to build wpcap.dll in Visual C++ 2008 Express Edition,
> but I get
> the following warning and error:
> warning C4013: 'snprintf' undefined; assuming extern returning int
> error LNK2001: unresolved external symbol _snprintf
> What am I missing?
> Thanks,
> Rafael Santini
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> Winpcap-users at winpcap.org
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