[MacPorts] #65557: ARPACK binary broken, can't find libgfortran

[MacPorts]

#65557: ARPACK binary broken, can't find libgfortran
----------------------+--------------------
 Reporter:  szhorvat  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.7.2
 Keywords:            |       Port:  arpack
----------------------+--------------------
 When attempting to start programs that link to ARPACK, the following error
 occurs:

 {{{
   Referenced from: /opt/local/lib/libarpack.2.dylib
   Reason: tried: '/opt/local/lib/libgfortran.5.dylib' (no such file),
 '/opt/local/lib/libgfortran.5.dylib' (no such file), '/opt/local/lib/gcc-
 devel/gcc/aarch64-apple-darwin21/12.1.0/libgfortran.5.dylib' (no such
 file), '/opt/local/lib/gcc-devel/gcc/aarch64-apple-
 darwin21/12.1.0/../../../libgfortran.5.dylib' (no such file),
 '/usr/local/lib/libgfortran.5.dylib' (no such file),
 '/usr/lib/libgfortran.5.dylib' (no such file)
 }}}

 For example, install `py310-igraph` then start `python3.10` and `import
 igraph`.

 This happened on an ARM Mac. I did not see the same on an Intel Mac.

 Possibly this is related to the ARM version using gcc-devel, or perhaps
 the recent GCC rpath change?

-- 
Ticket URL: <https://trac.macports.org/ticket/65557>
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