mirror of
https://github.com/Ponce/slackbuilds
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134 lines
3.4 KiB
Text
134 lines
3.4 KiB
Text
Qt is a cross-platform C++ application framework. Qt's
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primary feature is its rich set of widgets that provide
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standard GUI functionality.
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The following are optional dependencies that Qt will link
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against if they are detected at build time:
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libwebp, opus, ffmpeg, re2, snappy, libminizip, jsoncpp,
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libinput, unixODBC, postgresql, SDL2, assimp, wayland,
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OpenAL, protobuf(3?), argon2, and perhaps more.
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============================================================
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OPTIONS
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To use Qt's built-in ccache option:
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CCACHE=yes ./qt5.SlackBuild
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To build the documentation:
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DOCS=yes ./qt5.SlackBuild
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(you will need the llvm package from extra/ to build
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documentation)
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To build the examples:
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EXAMPLES=yes ./qt5.SlackBuild
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To build support for proprietary media codecs:
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PROPRIETARY_CODECS=yes ./qt5.SlackBuild
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(this will produce a non-redistributable package in some
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countries)
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To disable support for pulseaudio:
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PULSEAUDIO=no ./qt5.SlackBuild
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(Qt will automatically detect if pulseaudio is not installed
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at build time and disable it if it is missing.)
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To NOT build qtwebengine (EXPERIMENTAL):
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WEBENGINE=no ./qt5.SlackBuild
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To use the gold linker:
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LDGOLD=yes ./qt5.SlackBuild
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This may speed up the build, but can take more RAM.
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Combine any or all of the above.
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============================================================
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GENERAL NOTES
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After upgrading Qt5 it is important to rebuild qt5ct too, if
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it is installed, or some applications may not display or
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function correctly.
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There is a qt5-legacy (5.9.9) SlackBuild that is available
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for older applications that do not run correctly with this
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version. However it will not coexist with this version.
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Please report any problems about applications that don't
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work correctly to the Qt5 maintainer or to the mailing list.
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============================================================
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NOTES ON OPTIONS
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* Using ccache should speed up subsequent rebuilds, but may
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be slower for first time or one-off builds.
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* Building the documentation and/or examples creates a
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significantly larger package.
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============================================================
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BUILDING WITHOUT WEBENGINE
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Building without webengine can speed up compilation.
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If you have no intention of using the browser code, which
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includes a chunk of 3rd party Google Chromium source, then
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it may make sense to skip it and save yourself about 2/3 of
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the build time, and knocks about 3G off the needed space.
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The package version has _nowebengine appended to it for
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clarity.
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* Successfully tested so far without webengine (VERY quick
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tests):
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QMPlay2
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qt5ct
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qbittorrent-qt5
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speedcrunch
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qca-qt5
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psi-plus
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sddm
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============================================================
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TROUBLESHOOTING
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If Qt5 fails to build, it may be worth using the following
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steps.
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1 Uninstall the old Qt5 package
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2 Log out of root
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3 Log back in as root
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4 Build and install the new package
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5 Log out of root
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6 Log back in as root
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7 Upgrade all other packages that depend on Qt5
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The reasoning behind all the log outs/ins, is because Qt5
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installs /etc/profile.d/qt5.sh that sets QT5DIR and adds
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QT5DIR/bin to your $PATH when you log in (there's a similar
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file for csh.) Even though the old Qt5 is removepkg'd, those
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settings are *still there* until you log out.
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You can see with a test (assuming bash or a zsh type shell):
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env | grep -i qt5
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If that command is used before step 4, you shouldn't see
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anything qt5 related in PATH and QT5DIR shouldn't exist.
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