openslide / zlib problem

[GeorgFCode]

Trying toi install openslide on macOS 14.1.1 (23B81) i get the following error

...
Continue? [Y/n]: Y
--->  Fetching archive for zlib
--->  Attempting to fetch zlib-1.3_0.darwin_23.arm64.tbz2 from https://packages.macports.org/zlib
--->  Attempting to fetch zlib-1.3_0.darwin_23.arm64.tbz2 from https://fra.de.packages.macports.org/zlib
--->  Attempting to fetch zlib-1.3_0.darwin_23.arm64.tbz2 from https://nue.de.packages.macports.org/zlib
--->  Configuring zlib
Error: Failed to configure zlib: configure failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_archivers_zlib/zlib/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port openslide failed

already tried to do all updates and re-install macport

any help appreciated KR Georg