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

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==Installation==
 
==Installation==
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{{Deletion|This is solved by (optional) package dependencies, it is enough to enable [[multilib]] repo and install the 32bit program. Exceptions are/should be documented on other wiki pages, such as [[Steam]].}}
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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.
 
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.
  

Revision as of 15:13, 6 November 2014

Merge-arrows-2.pngThis article or section is a candidate for merging with Multilib.Merge-arrows-2.png

Notes: please use the second argument of the template to provide more detailed indications. (Discuss in Talk:Using 32-bit applications on Arch64#)

64-Bit-Processors like Athlon 64 are able to execute 32- and 64-bit programs at the same time.

Packages

32bit packages can now be found in the [multilib]-repository. You will need to add this repository before downloading any 32bit lib.

Installation

Tango-edit-cut.pngThis section is being considered for removal.Tango-edit-cut.png

Reason: This is solved by (optional) package dependencies, it is enough to enable multilib repo and install the 32bit program. Exceptions are/should be documented on other wiki pages, such as Steam. (Discuss in Talk:Using 32-bit applications on Arch64#)

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.

Some legacy C++ programs also need lib32-libstdc++5.

OpenGL-Applications

Programs using OpenGL need one of the following libraries:

  • Open source drivers: lib32-{ati,intel,mach64,mga,nouveau,r128,savage,sis,tdfx,unichrome}-dri
  • Closed source drivers: lib32-{catalyst,nvidia}-utils
  • Software rendering: lib32-libgl

QT-Applications

Programs using QT should run at once after installing lib32-qt.

Alsa & OpenAL

For Alsa and OpenAL-Support you have to install lib32-alsa-lib and lib32-openal.

Environment Variables

Some useful Env Variables when running 32bit-applications without chroot:

For gtk2 input modules and such

GTK_PATH=/opt/lib32/usr/lib/gtk-2.0/

For pango (lib32-pango includes these config files)

PANGO_RC_FILE="/opt/lib32/config/pango/pangorc"

Iconv (conversion from 'XXXXXXX' is not supported or cannot convert from X to Y -errors)

GCONV_PATH=/opt/lib32/usr/lib/gconv

Library paths without having them in /etc/ld.so.conf

LD_LIBRARY_PATH="/opt/lib32/usr/lib/:/opt/lib32/lib/:$LD_LIBRARY_PATH"

GDK stuff (GdkPixbuf warnings errors criticals, lib32-gtk2 includes the file)

GDK_PIXBUF_MODULE_FILE="/opt/lib32/config/gdk/gdk-pixbuf.loaders"