[MacPorts] #57540: libsdl2 @2.0.9: error: property 'CGColor' not found on object of type 'NSColor *'

[MacPorts]

#57540: libsdl2 @2.0.9: error: property 'CGColor' not found on object of type
'NSColor *'
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  jmroot
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:  lion        |       Port:  libsdl2
------------------------+----------------------
 libsdl2 used to build fine on 10.7, and on 10.6 when using the 10.7 sdk,
 but [https://build.macports.org/builders/ports-10.7_x86_64_legacy-
 builder/builds/85541/steps/install-port/logs/stdio now it fails]:

 {{{
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_devel_libsdl2/libsdl2/work/SDL2-2.0.9/src/video/cocoa/SDL_cocoawindow.m:1178:53:
 error: property 'CGColor' not found on object of type 'NSColor *'
     self.layer.backgroundColor = NSColor.blackColor.CGColor;
                                                     ^
 }}}

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Ticket URL: <https://trac.macports.org/ticket/57540>
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