[MacPorts] #16745: Allow macports to compile with apple's gcc 4.2

[MacPorts]

#16745: Allow macports to compile with apple's gcc 4.2
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  Reporter:  illogical1 at gmail.com                                                                                |       Owner:  macports-tickets at lists.macosforge.org
      Type:  defect                                                                                              |      Status:  new                                  
  Priority:  Normal                                                                                              |   Milestone:  Port Bugs                            
 Component:  ports                                                                                               |     Version:  1.6.0                                
Resolution:                                                                                                      |    Keywords:  fix compilation gcc 4.2 apple-gcc42  
      Port:  expat giflib ilmbase jasper lcms libgpg-error libvorbis lzmautils openexr subversion tiff flac pth  |  
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Comment(by boeyms at macports.org):

 Replying to [comment:4 illogical1@…]:
 > I'll have to test whether updating libtool fixes this.
 As the current maintainer of libtool (I'd be happy to hand this job to
 someone who uses it more frequently than I do), I'd just like to mention
 that it seems that the current libtool port will need to be split into one
 for the 1.5.x line and one for 2.x, as at least one port (libxslt) builds
 with the former but fails to build with the latter.

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Ticket URL: <http://trac.macports.org/ticket/16745#comment:5>
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