[MacPorts] #66378: llvm-13 fails to build as +universal on 10.8.5

[MacPorts]

#66378: llvm-13 fails to build as +universal on 10.8.5
---------------------------+--------------------------
  Reporter:  barracuda156  |      Owner:  catap
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.0
Resolution:                |   Keywords:  mountainlion
      Port:  llvm-13       |
---------------------------+--------------------------

Comment (by barracuda156):

 Replying to [comment:3 kencu]:
 > OK, then install libgcc as universal and see if it works then. If it
 does, that proves the point.

 Took forever to build it as universal, but you are absolutely right: only
 I installed `libgcc12` and `libgcc` as universal, `llvm-13 +universal`
 installed fine. I just resumed the build, and it went through completion.
 {{{
 10:~ svacchanda$ port -v installed libgcc12
 The following ports are currently installed:
   libgcc12 @12.2.0_0+stdlib_flag requested_variants='' platform='darwin
 12' archs='x86_64' date='2022-10-21T13:53:56+0800'
   libgcc12 @12.2.0_2+stdlib_flag+universal (active)
 requested_variants='+universal' platform='darwin 12' archs='i386 x86_64'
 date='2022-12-01T05:05:43+0800'
 10:~ svacchanda$ port -v installed llvm-13
 The following ports are currently installed:
   llvm-13 @13.0.1_2+universal (active) requested_variants='+universal'
 platform='darwin 12' archs='i386 x86_64' date='2022-12-01T06:55:59+0800'
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66378#comment:4>
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