[MacPorts] #64986: OpenBLAS fails on 10.6.8 Rosetta: error: unrecognized command-line option '-march=native'

[MacPorts]

#64986: OpenBLAS fails on 10.6.8 Rosetta: error: unrecognized command-line option
'-march=native'
---------------------------+-------------------------------------------
  Reporter:  barracuda156  |      Owner:  NicosPavlov
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, snowleopard, rosetta
      Port:  OpenBLAS      |
---------------------------+-------------------------------------------

Comment (by barracuda156):

 This may work, testing now:
 {{{
                 if {${os.major} == 10 && ${build_arch} eq "ppc"} {
                     puts $makeINC "TARGET = PPCG4"
                     puts $makeINC "HOSTARCH = PPCG4"
                 }
 }}}

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Ticket URL: <https://trac.macports.org/ticket/64986#comment:2>
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