[MacPorts] #61711: pgplot fails to build on Apple Silicon

[MacPorts]

#61711: pgplot fails to build on Apple Silicon
--------------------+--------------------
 Reporter:  rth238  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:  arm64   |       Port:  pgplot
--------------------+--------------------
 End of main.log file (full one is also attached):
 :info:build Exit code: 2
 :error:build Failed to build pgplot: command execution failed
 :debug:build Error code: CHILDSTATUS 43094 2
 :debug:build Backtrace: command execution failed
 :debug:build     while executing
 :debug:build "system {*}$notty {*}$nice $fullcmdstring"
 :debug:build     invoked from within
 :debug:build "command_exec build"
 :debug:build     (procedure "portbuild::build_main" line 8)
 :debug:build     invoked from within
 :debug:build "$procedure $targetname"
 :error:build See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_pgplot/pgplot/main.log
 for details.

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Ticket URL: <https://trac.macports.org/ticket/61711>
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