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Wireshark-dev: Re: [Wireshark-dev] Problem in 'packet-f5ethtrailer.c'

From: "Maynard, Chris" <Christopher.Maynard@xxxxxxx>
Date: Thu, 19 Mar 2020 16:22:49 +0000
> -----Original Message-----
> From: Wireshark-dev <wireshark-dev-bounces@xxxxxxxxxxxxx> On Behalf
> Of Gisle Vanem
> Sent: Thursday, March 19, 2020 10:41 AM
> To: wireshark-dev <wireshark-dev@xxxxxxxxxxxxx>
> Subject: [Wireshark-dev] Problem in 'packet-f5ethtrailer.c'
>
> I'm surprised no one has come across this compile error yet:
>    epan/dissectors/packet-f5ethtrailer.c(482): error C2143: syntax error:
> missing ';' before '.'
>    epan/dissectors/packet-f5ethtrailer.c(485): error C2224: left of '.S_addr'
> must have struct/union type
>    epan/dissectors/packet-f5ethtrailer.c(487): error C2224: left of '.S_addr'
> must have struct/union type
>
> (using MSVC-2019).
>
> Reason seems simple; <winsock2.h> has snuck in somehow and added the
> wellknown "#define s_addr S_un.S_addr"
>
> A simple fix is:
>
> --- a/epan/dissectors/packet-f5ethtrailer.c 2020-03-19 13:31:36
> +++ b/epan/dissectors/packet-f5ethtrailer.c 2020-03-19 14:26:51
> @@ -204,6 +204,7 @@
>   #include <epan/stats_tree.h>
>   #define F5FILEINFOTAP_SRC
>   #include "packet-f5ethtrailer.h"
> +#undef s_addr
>   #undef F5FILEINFOTAP_SRC

Which specific release of VS2019 are you running?  This is a bit of a stretch, but *possibly* your version could use an update?

As an added data point, I updated to 16.5 this week and I just recompiled Wireshark sources without any problem.
It seems the buildbots are running 16.0, so if you're running a version in between the two and one of those versions introduced this change, then *maybe* that could explain it?

Well, if that's not the problem, then there would appear to be something else different/unique to your build environment causing this.  I suppose we'd need more info ...
- Chris
https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes












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