[Bug 55557] New: wpcap:wpcap crashes on macOS

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55557

Bug ID: 55557
           Summary: wpcap:wpcap crashes on macOS
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wpcap
          Assignee: [e-mail]
          Reporter: [e-mail]

wpcap:wpcap crashes on macOS:

wpcap.c:368: lib version 
wpcap.c:369: supports PCAP_MMAP_32BIT: no
Unhandled exception: page fault on read access to 0xffffffffffffffff in 64-bit
code (0x000002c74cd410).

See https://test.winehq.org/data/patterns.html#wpcap:wpcap

The crash is systematic and only happens macOS (see Remi's rbernon-macos-*
cloud test machines).

The issue is probably that Wine is being compiled against macOS' pcap library
which is too old. Using a newer library would require installing it with
something like Homebrew and then making sure Wine can find and use it.

So there are two things to do:
* Detect cases when the pcap library is too old and skip the tests accordingly.
* Check if installing a newer pcap library on the macOS test machines is
feasible.