Difference between revisions of "Using 32-bit applications on Arch64"

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[[Category:Arch64]]
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#REDIRECT [[Multilib]]
[[de:32Bit-Programme unter Arch64]]
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[[fr:Utiliser des applications 32bits avec Arch64]]
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==Introduction==
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64-Bit-Processors like Athlon 64 are able to execute 32- and 64-bit programs at the same time.
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==Packages==
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32bit packages can now be found in the [multilib]-repository. You will need to add this repository before downloading any 32bit lib.
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==Installation==
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You will always need to install ''lib32-glibc'' in order to execute 32-bit-programs. It might be necessary to fake the output of ''uname''. Use the package ''linux32'' for this.
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Some legacy C++ programs also need ''lib32-libstdc++5''.
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===OpenGL-Applications===
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Programs using OpenGL need one of the following libraries:
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* Open source drivers: lib32-{ati,intel,mach64,mga,nouveau,r128,savage,sis,tdfx,unichrome}-dri
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* Closed source drivers: lib32-{catalyst,nvidia}-utils
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* Software rendering: lib32-libgl
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===QT-Applications===
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Programs using QT should run at once after installing ''lib32-qt''.
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===Alsa & OpenAL===
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For Alsa and OpenAL-Support you have to install ''lib32-alsa-lib'' and ''lib32-openal''.
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==Tested Applications==
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* Doom3, Enemy-Territory, Unreal Tournament
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** 32-bit opengl library (specific to driver), lib32-alsa-lib, [lib32-libstdc++5, lib32-openal]
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* Diablo II, Warcraft III
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** 32-bit opengl library (specific to driver), lib32-alsa-lib, [For Warcraft: lib32-openal]
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==Environment Variables==
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Some useful Env Variables when running 32bit-applications without chroot:
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For gtk2 input modules and such
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GTK_PATH=/opt/lib32/usr/lib/gtk-2.0/
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For pango (lib32-pango includes these config files)
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PANGO_RC_FILE="/opt/lib32/config/pango/pangorc"
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Iconv (conversion from 'XXXXXXX' is not supported or cannot convert from X to Y -errors)
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GCONV_PATH=/opt/lib32/usr/lib/gconv
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Library paths without having them in /etc/ld.so.conf
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LD_LIBRARY_PATH="/opt/lib32/usr/lib/:/opt/lib32/lib/:$LD_LIBRARY_PATH"
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GDK stuff (GdkPixbuf warnings errors criticals, lib32-gtk2 includes the file)
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GDK_PIXBUF_MODULE_FILE="/opt/lib32/config/gdk/gdk-pixbuf.loaders"
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Latest revision as of 09:03, 7 December 2014

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