[MacPorts] #57548: libsdl2 fails to build on lion

[MacPorts]

#57548: libsdl2 fails to build on lion
--------------------------+---------------------
 Reporter:  rmottola      |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:  libsdl2 Lion  |       Port:  libsdl2
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 I suppose it is an issue with the code using an
 unsupportedgetter/property.

 I Think there should be a more compatible way to get the CF color from the
 NS version, being toll-free bridged?


 {{{
 :info:build /bin/sh ./libtool --tag=CC --mode=compile /usr/bin/clang -pipe
 -Os -arch x86_64 -I/opt/local/include -DUSING_GENERATED_CONFIG_H -Iinclude
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_libsdl2/libsdl2/work/SDL2-2.0.9/include
 -idirafter
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_libsdl2/libsdl2/work/SDL2-2.0.9/src/video/khronos
 -mmmx -msse -msse2 -msse3 -Wall -DTARGET_API_MAC_CARBON
 -DTARGET_API_MAC_OSX -fvisibility=hidden -Wdeclaration-after-statement
 -Werror=declaration-after-statement -D_THREAD_SAFE
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_libsdl2/libsdl2/work/SDL2-2.0.9/src/hidapi/hidapi
 -MMD -MT build/SDL_syssem.lo -c
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_libsdl2/libsdl2/work/SDL2-2.0.9/src/thread/pthread/SDL_syssem.c
 -o build/SDL_syssem.lo
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_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 *'
 :info:build     self.layer.backgroundColor = NSColor.blackColor.CGColor;
 :info:build                                                     ^
 :info:build 1 error generated.
 :info:build make: *** [build/SDL_cocoawindow.lo] Error 1
 :info:build make: *** Waiting for unfinished jobs....
 }}}

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Ticket URL: <https://trac.macports.org/ticket/57548>
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