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

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''Note'': All libs will be installed under ''/opt/lib32''. Arch64 should not be affected by this. In the case of any problems use ''pacman -R lib32'' to remove all libs.
 
''Note'': All libs will be installed under ''/opt/lib32''. Arch64 should not be affected by this. In the case of any problems use ''pacman -R lib32'' to remove all libs.
  
'''Attention''': '''Never try to install all libs with ''pacman -S lib32'''''. And do '''not''' install any arch32-package.
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'''Attention''': '''Never try to install all libs with ''pacman -S lib32'''''.
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And do '''not''' install any arch32-package. ''lib32-*'' packages are made to run ''bin32-*'' packages
  
 
==Packages==
 
==Packages==

Revision as of 10:38, 27 November 2007

Introduction

64-Bit-Processors like Athlon 64 are able to execute 32- and 64-Bit-programs ar the same time. Unfortunately the x86_64-version of Arch (Arch64) does not provide any 32-Bit-libs by default.

Currently I am working on an easy solution to solve this. It does not use a cross-compiler nor a chroot-environment. I just make use of the arch32-packages which are already there.

Note: All libs will be installed under /opt/lib32. Arch64 should not be affected by this. In the case of any problems use pacman -R lib32 to remove all libs.

Attention: Never try to install all libs with pacman -S lib32.

And do not install any arch32-package. lib32-* packages are made to run bin32-* packages

Packages

All 32-bit-packages can be found in the [community]-repository. The packages are kept in sync to the ones from arch32. Use them at your own risk.

Installation

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 c++-programs also need lib32-libstdc++5.

OpenGL-Applications

Programs using OpenGL need one of the following libs which fits to your graphicscard:

  • nVidia: lib32-nvidia-utils
  • ATI: lib32-fglrx-utils
  • DRI: (all opensource-drivers like those for Intel-chips) lib32-libgl-dri

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.

Tested Applications

  • Doom3, Enemy-Territory, Unreal Tournament
    • lib32-nvidia-utils, lib32-alsa-lib, [lib32-libstdc++5, lib32-openal]
  • Opera
    • lib32-qt
  • Google Earth
    • lib32-qt and lib32-nvidia-utils

Note : Google Earth seems to work here without lib32-qt

  • Skype
    • lib32-qt, lib32-alsa-lib

Variables

Some variables that are useful 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"