[MacPorts] #57742: cairo @1.16.0 +quartz+universal+x11: cannot upgrade from @1.14.12 to @1.16.0

[MacPorts]

#57742: cairo @1.16.0 +quartz+universal+x11: cannot upgrade from @1.14.12 to
@1.16.0
---------------------------+------------------------
  Reporter:  hugo-ribeiro  |      Owner:  ryandesign
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.5.4
Resolution:  fixed         |   Keywords:  xcode10
      Port:  cairo         |
---------------------------+------------------------

Comment (by ryandesign):

 ld64's ld64_xcode variant means "use the version of ld64 included in
 Xcode". The version of ld64 in your Xcode prints the warning that causes
 the issue in this ticket. Ken mentioned that he patched our ld64 to remove
 that warning, so if you were to install ld64 with a variant other than
 ld64_xcode, then you would get our ld64 instead of Xcode's and the warning
 wouldn't be printed and you wouldn't see the problem.

 Since my patch to the cairo ports doesn't change anything on disk for
 those who were able to install the port, the ports' revisions don't need
 to be increased. Just wait an hour after my commit, then `sudo port sync`
 to receive the fix.

-- 
Ticket URL: <https://trac.macports.org/ticket/57742#comment:15>
MacPorts <https://www.macports.org/>
Ports system for macOS