zile builds but does not run under high sierra

[Randy Mortensen]

I recently upgraded macOS to high sierra (MacBook Pro 15”) and removed and installed all my ports, one of which is the zile editor.
However zile does not run and instead results in “Illegal instruction: 4”
As a check, I did “sudo port uninstall zile” and “sudo port install zile” and it builds without error:

sudo port install zile
--->  Computing dependencies for zile
--->  Fetching archive for zile
--->  Attempting to fetch zile-2.3.23_1.darwin_17.x86_64.tbz2 from https://packages.macports.org/zile
--->  Attempting to fetch zile-2.3.23_1.darwin_17.x86_64.tbz2 from http://ywg.ca.packages.macports.org/mirror/macports/packages/zile
--->  Attempting to fetch zile-2.3.23_1.darwin_17.x86_64.tbz2 from http://sea.us.packages.macports.org/macports/packages/zile
--->  Fetching distfiles for zile
--->  Verifying checksums for zile
--->  Extracting zile
--->  Configuring zile
--->  Building zile
--->  Staging zile into destroot
--->  Installing zile @2.3.23_1
--->  Activating zile @2.3.23_1
--->  Cleaning zile
--->  Updating database of binaries
--->  Scanning binaries for linking errors
--->  No broken files found.

I didn’t find any reported bugs for zile.

Any thoughts or advice?