[MacPorts] #67786: Problem (bug) to upgrade to gnuplot-5.4.8 in Mac M1

[MacPorts]

#67786: Problem (bug) to upgrade to gnuplot-5.4.8 in Mac M1
----------------------+-------------------------------------
 Reporter:  linlupin  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.8.1
 Keywords:            |       Port:  gnuplot, grace and ....
----------------------+-------------------------------------
 To whom will concern it,

 I tried to update the Macports to the latest version 2.8.1 and upgrade the
 related ports. Unfortunately, I received the following error message:

 --- \\
 --->  Computing dependencies for gnuplot \\
 --->  Fetching archive for gnuplot \\
 --->  Attempting to fetch
 gnuplot-5.4.8_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_20.arm64.tbz2
 from https://packages.macports.org/gnuplot \\
 --->  Attempting to fetch
 gnuplot-5.4.8_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_20.arm64.tbz2
 from http://jog.id.packages.macports.org/macports/packages/gnuplot \\
 --->  Attempting to fetch
 gnuplot-5.4.8_0+aquaterm+luaterm+pangocairo+wxwidgets+x11.darwin_20.arm64.tbz2
 from http://mirror.fcix.net/macports/packages/gnuplot \\
 --->  Building gnuplot \\
 Error: Failed to build gnuplot: command execution failed \\
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_math_gnuplot/gnuplot/main.log
 for details. \\
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there is a bug. \\
 Error: Processing of port gnuplot failed \\
 --- \\

 Due to the error of the upgrade, several old installations are also
 affected.
 For example, when I operate the "grace", I obtain the following error
 message:
 ---
 dyld: Library not loaded: /opt/local/lib/libXm.4.dylib \\
   Referenced from: /opt/local/bin/xmgrace  \\
   Reason: no suitable image found.  Did find:  \\
         /opt/local/lib/libXm.4.dylib: mach-o, but wrong architecture  \\
         /opt/local/lib/libXm.4.dylib: mach-o, but wrong architecture  \\
 ---

 Any good suggestion to fix this bug?

-- 
Ticket URL: <https://trac.macports.org/ticket/67786>
MacPorts <https://www.macports.org/>
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