[MacPorts] #39065: atlas: build failure on 10.6.8

[MacPorts]

#39065: atlas: build failure on 10.6.8
--------------------------+-------------------------
  Reporter:  atif.azad@…  |      Owner:  vince@…
      Type:  defect       |     Status:  reopened
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.1.3
Resolution:               |   Keywords:  snowleopard
      Port:  atlas        |
--------------------------+-------------------------

Comment (by atif.azad@…):

 I tried the following command:

 {{{
 sudo port upgrade gcc47
 }}}

 however, it returned further errors:
 {{{
 Error: llvm-3.1 is not supported on Mavericks or later.
 Error: org.macports.fetch for port llvm-3.1 returned: unsupported platform
 Please see the log file for port llvm-3.1 for details:
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_lang_llvm-3.1/llvm-3.1/main.log
 Error: Unable to upgrade port: 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/39065#comment:23>
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