Revisions to How do I run 32-bit programs on a 64-bit Debian/Ubuntu?

It is necessary to run `apt-get update` after adding the architecture otherwise subsequent `apt` calls will fail to find the required packages. This caused me some confusion until I read the Debian Wiki article: https://wiki.debian.org/Multiarch/HOWTO

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edit approved Jul 7, 2023 at 16:29

davefiddes

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1
5
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Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

sudo dpkg --add-architecture i386
sudo apt-get update

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

sudo dpkg --add-architecture i386
sudo apt-get update

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

The command for adding architecture is the same on Ubuntu and Debian (for current versions).

Source Link

edit approved Aug 18, 2020 at 10:26

hansfn

117
5

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

For Ubuntu:

sudo dpkg --foreign-architecture i386

And for Debian:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

For Ubuntu:

sudo dpkg --foreign-architecture i386

And for Debian:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Typo in the second sentence, OP had "23 bit" rather than "32 bit"

Source Link

edit approved Jun 24, 2014 at 19:43

111---

4.7k
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Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the 23bitnecessary 32bit architecture to your system:

For Ubuntu:

sudo dpkg --foreign-architecture i386

And for Debian:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the 23bit architecture to your system:

For Ubuntu:

sudo dpkg --foreign-architecture i386

And for Debian:

sudo dpkg --add-architecture i386

Then install the 32bit library:

sudo apt-get install libXX:i386

The ia32-libs package. As of Ubuntu 12.04 precise, it no longer contains any libraries, it only pulls in libXX:i386 packages as dependencies.

The compile part is rather easy for C and C++ programs, add -m32 to CFLAG or CXXFLAG, which will make generated program 32bit, e.g

export CFLAGS="-m32"
gcc main.c -o main

This works for makefile-based projects as well.

Since Ubuntu 11.04 (natty) and Debian 7.0 (wheezy) introduced multiarch support, 32-bit and 64-bit libraries can coexist on one system. To install a 32-bit library libXX, first add the necessary 32bit architecture to your system:

For Ubuntu: