[MacPorts] #54129: llvm-4.0 build fails due to libtool error on SnowLeopard when built with clang-3.9, but succeeds when built with clang-3.7

[MacPorts]

#54129: llvm-4.0 build fails due to libtool error on SnowLeopard when built with
clang-3.9, but succeeds when built with clang-3.7
-----------------------+----------------------
  Reporter:  kencu     |      Owner:  jeremyhu
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  llvm-4.0  |
-----------------------+----------------------

Comment (by kencu):

 Oh, I see. You already have that.

 Maybe this xcodeversion test will need to be bumped up past 4.2 then. Not
 sure where it needs to be set.

 {{{
 # I'm not sure the exact version of Xcode that has a good enough libtool,
 but 3.2.6 seems to get past this when 3.1.4 doesn't:
 #     /Developer/usr/bin/libtool: for architecture x86_64 object:
 CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o malformed object (unknown
 load command 1)
 #     /Developer/usr/bin/libtool: for architecture: (null) file:
 CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o is not an object file (not
 allowed in a library)
 #     /Developer/usr/bin/libtool: for architecture i386 object:
 CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o malformed object (unknown
 load command 1)
 if {[vercmp $xcodeversion "3.2.6"] < 0} {
     depends_build-append port:cctools
     depends_skip_archcheck-append cctools
     configure.args-append \
         -DCMAKE_LIBTOOL=${prefix}/bin/libtool
 }
 }}}

--
Ticket URL: <https://trac.macports.org/ticket/54129#comment:6>
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