[MacPorts] #20937: qt4-mac @4.5.2 +universal fails on 10.6 due to -arch -arch

[MacPorts]

#20937: qt4-mac @4.5.2 +universal fails on 10.6 due to -arch -arch
-----------------------------------------+----------------------------------
 Reporter:  eric.nodwell@…               |       Owner:  macports-tickets@…                   
     Type:  defect                       |      Status:  new                                  
 Priority:  Normal                       |   Milestone:                                       
Component:  ports                        |     Version:  1.8.0                                
 Keywords:  snowleopard                  |        Port:  qt4-mac                              
-----------------------------------------+----------------------------------
 qt-mac @4.5.2 +universal fails on 10.6 (Snow Leopard).  This is due to a
 double '-arch -arch' appearing in a build command.  See the attached debug
 log qt4-mac_universal.log , generated from 'sudo port -d install qt4-mac
 +universal buildmakejobs=1'.  (All the dependencies were also build with
 +universal).

 The pertinent lines from the log are:
 {{{
 /usr/bin/g++-4.2 -arch x86_64 -arch i386 -Xarch_i386 -mmacosx-version-
 min=10.4 -Xarch_x86_64 -mmacosx-version-min=10.5 -arch -arch -Xarch_x86_64
 -mmacosx-version-min=10.5 -o ../../../bin/moc release-shared/moc.o
 release-shared/preprocessor.o release-shared/generator.o release-
 shared/parser.o release-shared/token.o release-shared/main.o
 -L/opt/macports/lib -L../bootstrap -lbootstrap -L/opt/macports/lib -lz
 -framework CoreServices
 g++-4.2: Invalid arch name : -arch
 make[1]: *** [../../../bin/moc] Error 1
 }}}

 This error is very similar to an error that afflicted gcc and was reported
 in #20280.  In that case it was fixed in changeset r54512.  I have however
 been unable to successfully copy that fix to qt4-mac/Portfile.

 Note that this is different than the error that in generated for a non-
 universal build, which is reported in #20435.

-- 
Ticket URL: <http://trac.macports.org/ticket/20937>
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