[MacPorts] #34385: Support gcc47 and gcc48 on ppc

[MacPorts]

#34385: Support gcc47 and gcc48 on ppc
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  Reporter:  boby.foulcan@…          |       Owner:  jeremyhu@…           
      Type:  defect                  |      Status:  reopened             
  Priority:  Normal                  |   Milestone:                       
 Component:  ports                   |     Version:  2.0.4                
Resolution:                          |    Keywords:  Leopard ppc          
      Port:  gcc42 gcc47 gcc48       |  
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Comment(by darylew@…):

 Replying to [comment:19 jeremyhu@…]:
 > As mentioned in another bug report, gcc47 and gcc48 specifically have
 supported_archs set to 'i386 x86_64' because of this and related issues.
 If you can provide a fix, we will certainly take it (and I suggest you
 work with gnu.org to get the fix included in their releases as well), but
 we will not be focusing our efforts on fixing issues like this.

 I downloaded (from SVN) GCC 4.7 and it seems to have built correctly so
 far.  I think the problem may be related to
 [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49594 bootstrap failure in
 libffi:darwin_closure for powerpc-darwin8], but it should already be
 fixed.

 Since my attempts to fix it, I see another fix here by tobias.  Maybe I'll
 try it with gcc47 on my 10.4.11 ppc system.

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Ticket URL: <https://trac.macports.org/ticket/34385#comment:25>
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