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.

I figured it out. It's working if you use my fork: https://github.com/JakkuSakura/homebrew-kde
It's because homebrew-kde is using KDE 5, but several libraries like ki18n and karchive in homebrew is updated to KDE 6.

I figured it out. It's working if you use my fork: https://github.com/JakkuSakura/homebrew-kde
It's because homebrew-kde is using KDE 5, but several libraries like ki18n and karchive in homebrew is updated to KDE 6.

Great. Can you get dolphin working?

I hit a C++ compile error https://bugs.gentoo.org/894346 and I couldn't afford more time to continue by replacing the source. I started to use ForkLift eventually.

There are reports that dolphin are working after compiling in their own ways. KDE also offers custom build tools but I didn't try them.

For those you get qt5 cmake errors that it's unable to pick specific libraries. qt@5 from brew is broken on newer versions probably brew changed the installation location. Use the following command to fix:
find -L /opt/homebrew/lib/cmake/ -name 'Qt5*.cmake' -exec sed -i '' 's|"\${CMAKE_CURRENT_LIST_DIR}/../../../"|/opt/homebrew/opt/qt5/|g' {} \;

The qt5 cmake errors cannot be removed. I tried to ln -s but in vain. I had troubles with the "brew tap" commands as well. Is it, brew tap jakkusakura/kde https://github.com/JakkuSakura/homebrew-kde.git --force-auto-update or so?

For qt5 cmake error, where did you install qt5? It's better if you check the error log. For me, it's something like /opt/homebrew/lib/cmake/Qt5Gui/Qt5GuiConfig.cmake contains get_filename_component(_qt5Gui_install_prefix ${CMAKE_CURRENT_LIST_DIR}/../../../ ABSOLUTE) but it's invalid.
For the brew tap, you need to

brew untap kde-mac/kde --force
brew tap kde-mac/kde https://github.com/JakkuSakura/homebrew-kde

Then it should be fine

/opt/homebrew/lib/cmake//Qt6BuildInternals/StandaloneTests/Qt5CompatTestsConfig.cmake is what is obtained by find -L /opt/homebrew/lib/cmake/ -name 'Qt5*.cmake'. It says

% cat /opt/homebrew/lib/cmake//Qt6BuildInternals/StandaloneTests/Qt5CompatTestsConfig.cmake
＃ Copyright (C) 2024 The Qt Company Ltd.
＃ SPDX-License-Identifier: BSD-3-Clause

＃ TODO: Ideally this should look for each Qt module separately, with each module's specific version,
＃ bypassing the Qt6 Config file, aka find_package(Qt6SpecificFoo) repated x times. But it's not
＃ critical.
find_package(Qt6 6.8.2
COMPONENTS Core5Compat).

The qt5/6 is as follows:

lrwxr-xr-x 1 sakuraim admin 20 3 20 17:50 qt -> ../Cellar/qt/6.8.2_1
lrwxr-xr-x 1 sakuraim admin 24 3 21 04:47 qt5 -> ../Cellar/qt@5/5.15.16_1
lrwxr-xr-x 1 sakuraim admin 20 3 20 17:50 qt6 -> ../Cellar/qt/6.8.2_1
lrwxr-xr-x 1 sakuraim admin 24 3 21 04:41 qt@5 -> ../Cellar/qt@5/5.15.16_1
lrwxr-xr-x 1 sakuraim admin 20 3 20 17:50 qt@6 -> ../Cellar/qt/6.8.2_1

by % ls -la /opt/homebrew/opt/. The qt5 is introduced for 2c1970eb750 qt@5: update 5.15.16_1 bottle at /opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/q. I guess it is /opt/homebrew/Cellar/qt@5/5.15.16_1 since it says % brew uninstall --ignore-dependencies qt@5
Uninstalling /opt/homebrew/Cellar/qt@5/5.15.16_1... (10,849 files, 341.7MB)

ls says

% ls /opt/homebrew/Cellar/qt@5/5.15.16_1
Frameworks doc
INSTALL_RECEIPT.json include
LICENSE.FDL lib
LICENSE.GPL3-EXCEPT libexec
LICENSE.GPLv2 mkspecs
LICENSE.GPLv3 phrasebooks
LICENSE.LGPLv21 plugins
LICENSE.LGPLv3 qml
LICENSE.QT-LICENSE-AGREEMENT sbom.spdx.json
README share
bin translations

Hope it works.

Some progress:

$ brew link --force qt@5
$ sudo ln -s $(brew --prefix qt@5)/mkspecs /usr/local/mkspecs
$ sudo ln -s $(brew --prefix qt@5)/plugins /usr/local/plugins

Then, by your shell script, it works after ln -s /opt/homebrew/opt/qt@5 /opt/homebrew/opt/qt5. I could install kf5-ki18n.rb.

But, now another problem:

==> Installing kf5-kiconthemes from kde-mac/kde
==> cmake -G Ninja -B build -S . -D BUILD_QCH=ON -D BUILD_TESTING=ON -D BUILD_TE
Last 15 lines from /Users/sakuraim/Library/Logs/Homebrew/kf5-kiconthemes/01.cmake:
"KF5Archive", but CMake did not find one.
` Could not find a package configuration file provided by "KF5Archive"` ` (requested version 5.111.0) with any of the following names:`
KF5ArchiveConfig.cmake
kf5archive-config.cmake
` Add the installation prefix of "KF5Archive" to CMAKE_PREFIX_PATH or set` ` "KF5Archive_DIR" to a directory containing one of the above files. If` ` "KF5Archive" provides a separate development package or SDK, be sure it has` ` been installed.`
``
-- Configuring incomplete, errors occurred!

Some idea?

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.