[MacPorts] #52537: hatari - fix for build on Snow Leopard without Xcode 4.2

[MacPorts]

#52537: hatari - fix for build on Snow Leopard without Xcode 4.2
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  Reporter:  ken.cunningham.webuse@…  |      Owner:  macports-tickets@…
      Type:  defect                   |     Status:  new
  Priority:  Normal                   |  Milestone:
 Component:  ports                    |    Version:  2.3.4
Resolution:                           |   Keywords:  haspatch maintainer
      Port:  hatari                   |
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Comment (by larryv@…):

 Replying to [comment:7 ken.cunningham.webuse@…]:
 > {{{
 > :info:build In file included from
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_emulators_hatari/hatari/work/hatari-1.9.0/src
 /gui-osx/PrefsController.m:18:
 > :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_emulators_hatari/hatari/work/hatari-1.9.0/src
 /gui-osx/PrefsController.h:78:5: error:
 > :info:build       unknown type name '__unsafe_unretained'
 > :info:build     __unsafe_unretained IBOutlet NSStepper
 *TTRAMSizeStepper;
 > :info:build     ^
 > }}}

 `__unsafe_unretained` is an ARC variable lifetime qualifier, which
 requires Xcode 4.2.

 https://developer.apple.com/library/prerelease/content/releasenotes/ObjectiveC/ObjCAvailabilityIndex

 You could try blacklisting `{ clang < 211 }` so that one of our compilers
 is used. I think Snow Leopard’s Objective-C runtime is new enough to
 handle it.

-- 
Ticket URL: <https://trac.macports.org/ticket/52537#comment:10>
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