On Oct 17, 2016, at 7:18 AM, Joerg Mayer <jmayer@xxxxxxxxx> wrote:
> I tried to recall why building with libpcap is optional and failed.
The reasons I can see for supporting building without libpcap on UN*X are:
1) some people might want a version of Wireshark that can read captures but can't capture traffic;
2) some platforms might not have libpcap.
I'm not all that sympathetic to reason 1); I'll let those who want to defend it do so.
As for 2):
1) most Linux distributions, the *BSDs, macOS, Solaris, and AIX come with libpcap in recent releases;
2) libpcap can be built and installed on HP-UX and older versions of Solaris and AIX;
3) it can also be built and installed on other UN*Xes - even if there's no native capture mechanism, where you get a "stub" version of the capture mechanism and don't actually get any interfaces on which to capture;
so I'm not that sympathetic to reason 2), either.
As for Windows, the Developer's Guide tells you how to install the WinPcap SDK.
So I wouldn't personally have a problem with requiring libpcap to be installed on UN*X and the WinPcap SDK to be installed on Windows if you want to build Wireshark.
I'll let those who *would* have a problem argue in favor of their position.
