[MacPorts] #64390: Possible to build ports on 10.6.8 as universal (x86_64 + ppc64) after restoring PPC assembler?

[MacPorts]

#64390: Possible to build ports on 10.6.8 as universal (x86_64 + ppc64) after
restoring PPC assembler?
--------------------------+----------------------------
 Reporter:  barracuda156  |      Owner:  (none)
     Type:  enhancement   |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  base          |    Version:  2.7.1
 Keywords:                |       Port:  powerpc, ppc64
--------------------------+----------------------------
 This is a way to restore of ppc/ppc64 support into Xcode 4.2 and command
 line: https://stackoverflow.com/questions/5333490/how-can-we-restore-ppc-
 ppc64-as-well-as-full-10-4-10-5-sdk-support-to-xcode-4
 Also: https://github.com/devernay/xcodelegacy

 Two questions are:

 1. Is it possible in principle to build ports as universal for x86_64 +
 ppc64 (or for all 4 archs, m32 + m64) on an Intel machine?

 2. If yes, can such builds be then installed (via setting up local
 archive) onto a PowerPC system?

 (Why I am asking this is that some ports fail to build on PowerPC
 natively.)

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Ticket URL: <https://trac.macports.org/ticket/64390>
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