ARPACK binary broken, can't find libgfortran

[szhorvat (Szabolcs Horvát)]

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?

[cjones051073 (Chris Jones)]

First thing to try is to rev-bump the affected ports, to see if a rebuild against the updated libgcc etc. helps.

[szhorvat (Szabolcs Horvát)]

Indeed, rebuilding from source works.

[Chris Jones <jonesc@…>]

In 78a84795db94c2359145949e1f6433b6b4e89c0e/macports-ports (master):

arpack: rev-bump to rebuild with updated GCC
See: #65557