[MacPorts] #59269: atlas returns segmentation fault with macOS 101.5 and Xcode 11

[MacPorts]

#59269: atlas returns segmentation fault with macOS 101.5 and Xcode 11
--------------------------------+--------------------
 Reporter:  vdoublie            |      Owner:  (none)
     Type:  defect              |     Status:  new
 Priority:  Normal              |  Milestone:
Component:  ports               |    Version:  2.6.1
 Keywords:  segmentation fault  |       Port:  atlas
--------------------------------+--------------------
 building atlas to use with numpy parallelisation
 atlas + gcc9
 returns segmentation fault
 {{{
 :info:build cd bin/ ; ./xatlas_build -1 0 -a 1 -l 1
 :info:build /bin/sh: line 1:  8263 Segmentation fault: 11  ./xatlas_build
 -1 0 -a 1 -l 1
 :info:build make[1]: *** [build] Error 139
 }}}
 and arch errors
 see log file attach
 config:
 MBP late 2015 13"
 16Mb RAM
 2,7 GHz Dual-Core Intel Core i5

 maintainer: veence

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Ticket URL: <https://trac.macports.org/ticket/59269>
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