[MacPorts] #52337: atk build failed in macOS Sierra 10.12

[MacPorts]

#52337: atk build failed in macOS Sierra 10.12
------------------------------+--------------------------------
  Reporter:  zhangchaowang@…  |      Owner:  macports-tickets@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.4
Resolution:                   |   Keywords:  sierra
      Port:  atk              |
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Comment (by ryandesign@…):

 Yes #36438 sounds like what I was thinking of.

 The summary is that the linker is trying to use the MacPorts copy of
 libpcap, not because atk uses it, but because some system library atk uses
 uses it. (And this fails because we need a universal version, which the OS
 provides, but which the MacPorts copy on your system is not.) Jeremy
 thought this was a linker bug, and mentioned <rdar://problem/12450551>,
 but then later closed the ticket saying "There's not really anything we
 can do about this. This is how the toolchain works..." The buildbot did
 not encounter the problem because libpcap was not active at the time atk
 was built, so the linker successfully used the universal copy of the
 library provided by macOS. The build failed on our systems because we
 happened to already have a non-universal copy of libpcap installed by
 MacPorts. The workaround is to either deactivate libpcap for the duration
 of the atk build, or else to install libpcap universal. And if you see the
 same problem mentioning other ports such as dbus-python27, then the same
 applies to them: either install universal, or temporarily deactivate.
 Using MacPorts trace mode (`sudo port -t install ...`) may also work
 around it, but you may need to build MacPorts trunk from source, as the
 version of trace mode in MacPorts 2.3.x may not be sufficient for Sierra
 or El Capitan.

-- 
Ticket URL: <https://trac.macports.org/ticket/52337#comment:9>
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