Installation Dependencies on 64-bit Linux®

Last modified by Microchip on 2024/06/24 06:29


MPLAB® X Integrated Development Environment (IDE) and the MPLAB XC C Compilers are 32-bit applications, so to run them on a 64-bit system with a 64-bit Linux® distribution, you may need to install additional packages from your distribution's repository.

For better or worse, there is still quite a bit of variation among 64-bit Linux distributions with respect to their support of 32-bit applications and exactly which libraries are installed or required by default. The information on this page will allow you to successfully install and run MPLAB X IDE and the MPLAB XC Compilers on a 64-bit Linux system.

Do I have a 64-bit Linux Installation?

You can determine whether you are running a 64-bit version of Linux by running the following command in a terminal:

uname -m

If the output has 64 at the end (e.g., x86_64), then you have a 64-bit system.

What about 64-bit distributions with multiarch support?

64-bit versions of Debian-based distributions such as Ubuntu, Linux Mint, and their derivatives, and perhaps some others now include multiarch support. Ideally, this means that you don't need to install ia32-libs, though you may still require some 32-bit versions of specific libraries.

You can determine if a 64-bit Debian-based distribution has multiarch support by running the following command in a terminal:

​dpkg --print-foreign-architectures

If the output is i386 you have multiarch support and don't need to install the ia32-libs 32-bit runtime libraries, though you will probably need to install other 32-bit libraries.

What 32-bit libraries/packages do I need to install?

MPLAB X IDE requires the libraries listed below. The MPLAB XC compilers require a subset of these libraries, so if you install them for MPLAB X IDE, you will be all set to use the MPLAB XC compilers as well.

ia32-libs32-bit runtime libraries. Only for 64-bit distributions without multiarch support 
libc6:i386Embedded GNU C,,,,
libx11-6:i386X11 client-side
libxext6:i386X11 miscellaneous extension
libstdc++6:i386GNU Standard C++
libexpat1:i386XML parsing C

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Distribution Specific Notes

Ubuntu 14.04 and Later

ibc6:i386 is the only one of these packages you will find if you are using Synaptic. These must be installed from the command line using apt-get:

​sudo apt-get install libc6:i386 libx11-6:i386 libxext6:i386 libstdc++6:i386 libexpat1:i386


If you try to install without the required libraries, the installer will quit without any warning messages.

Tested on versions 20 and above.

​sudo dnf install libX11.i686 libXext.i686 libgcc.i686 libstdc++.i686 expat.i686

Mageia 4

The installer script can't detect 32-bit libraries on this platform.

A workaround suggested by a user is as follows. In the installation script function, check32BitLibraries(), search for:​

echo Check for 32 Bit libraries
for lib in $@
ldconfig -p | grep $lib | grep 386 > /dev/null
if [ $? -ne 0 ]; then
if [ $out -eq 0 ]; then
echo These 32 bit libraries were not found and are needed for MPLAB X to run:


ldconfig -p | grep $lib | grep 386


ldconfig -p | grep $lib | grep -v x86-64

to enable detection.

According to the developers, a fix similar to this will be in the version 2.25 installer script.

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Package Installation

Check Installation Status

You may already have one or more of these installed on your system. To determine whether a package is installed on a Debian-based distribution, run the following command in a terminal:

​dpkg -s package

For example: 

dpkg -s libexpat1:i386

For rpm-based systems, the command is:

​dpkg -s package

Installing Required Packages

On Debian-based systems (e.g., Ubuntu, Mint) packages may be installed with apt-get in a terminal window:

​sudo apt-get install package1 package2 packageN

Or they may be installed from your distribution's graphical package manager such as Synaptic, Muon, or the Ubuntu Software Center.

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