how to install Okular viewer on macOS Big Sur, using M1/Apple Silicon/arm64

okular-appleSilicon.md

1. Install homebrew from https://brew.sh/ (follow the instructions there)
2. tap the https://invent.kde.org/packaging/homebrew-kde/ repo, brew tap kde-mac/kde https://invent.kde.org/packaging/homebrew-kde.git
3. brew edit okular, workaround now is to comment out or delete the line depends_on "chmlib" (won't compile on macos arm64 for now as of 2021-08-18), then save (if using vim you need to first press i to insert/type, when saving then <esc> then :wq then <enter>.
4. brew install okular, wait for stuff to compile and/or install
5. It may ask for keychain credentials (to sign the binaries? because of mac arm64 security policy https://eclecticlight.co/2021/01/26/when-you-dont-have-permission-to-run-an-app-on-an-m1-mac/)
6. $(brew --repo kde-mac/kde)/tools/do-caveats.sh
7. Now okular is in your $HOME/Applications/KDE folder, and will show up in Launchpad! You can view pdf, djvu, etc documents.

After brew install kf5-karchive.rb in your fork repository, it delivers some errors for phonon.

I bypassed the errors of phonon by editing the header files of enum to explicity use unsigned. It's like this: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272029.

I think I managed to install okular, but I still cannot print PDF files in a just size. Thanks a lot!

Note that I also needed things including ln -s /opt/homebrew/lib/libKF5Archive.5.dylib /opt/homebrew/Cellar/kdoctools/5.109.0/bin/../../../../opt/karchive/lib/libKF5Archive.5.dylib.