[MacPorts] #22148: fix gcc43 darwin10 build and add i386 multilib using backports from gcc 4.4

[MacPorts]

#22148: fix gcc43 darwin10 build and add i386 multilib using backports from gcc 4.4
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 Reporter:  howarth@…                 |       Owner:  macports-tickets@…                   
     Type:  defect                    |      Status:  new                                  
 Priority:  Normal                    |   Milestone:                                       
Component:  ports                     |     Version:  1.8.1                                
 Keywords:  lang                      |        Port:  gcc43                                
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 Backport fixes for darwin10 build and i386 multilib support on[[BR]]
 x86_64-apple-darwin target from gcc 4.4. These were introduced[[BR]]
 in the following gcc commits. Note that without the darwin10 fixes,[[BR]]
 configure makes incorrect assumptions about the features in darwin10[[BR]]
 [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-11/msg00304.html [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-12/msg00068.html [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-12/msg00067.html [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-12/msg00065.html [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-12/msg00125.html [[BR]]
 http://gcc.gnu.org/ml/gcc-cvs/2008-12/msg00124.html [[BR]]
 [[BR]]
 The attached packaging changes builds fine on x86_64-apple-darwin10.[[BR]]

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Ticket URL: <http://trac.macports.org/ticket/22148>
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