---
title: "GCC Upgrade (Gen3)"
slug: "fmadio-os-custom-gcc-upgrade-gen3"
updated: 2024-10-05T06:17:05Z
published: 2024-10-05T06:17:05Z
canonical: "docs.fmad.io/fmadio-os-custom-gcc-upgrade-gen3"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fmad.io/llms.txt
> Use this file to discover all available pages before exploring further.

# GCC Upgrade (Gen3)

On the FMADIO Generation 3 systems, the GCC version is quite old, we have kept this for stability as the systems have been using this version for a long time without issues.

This can cause problems when compiling software requiring support for newer C and C++ specifications.

Generation4 systems have GCC12 as the default compiler

We support GCC10 on the Generation3 systems, requires some custom updates

## Step 1) Download the package

Download the GCC10 package from

[https://firmware.fmad.io/download/firmware/gcc10.tcz](https://firmware.fmad.io/download/firmware/gcc10.tcz)

MD5 hash is: 59bcce1e56bd3f7cfe598ccb989bf547

## Step 2) Move the file to the package directory

```plaintext
sudo cp gcc10.tcz  /mnt/system/tce/optional/
```

## Step 3) Update the package loader

Edit the file

```plaintext
/mnt/system/tce/onboot.lst
```

Add gcc10.tcz to the list of packages to load on boot

![](https://cdn.document360.io/b9aab0c4-36d0-4616-9673-30b661455571/Images/Documentation/image(11).png?sv=2026-02-06&spr=https&st=2026-11-13T19%3A56%3A44Z&se=2026-11-13T20%3A56%3A44Z&sr=c&sp=r&sig=kdJ%2BPmqkL%2BI%2FAgkMTKFzoLQl5e2ieK1SgjbAYI0jFwM%3D)

## Step 4) Reboot the system

```plaintext
sudo reboot
```

## Step 5) Check install

On reboot GCC10 is installed under `gcc-10.2` and `g++-10.2`

To confirm

```plaintext
gcc-10.2 -v
```

Example output

```plaintext
fmadio@fmadio100v2-228U:~$ gcc-10.2 -v
Using built-in specs.
COLLECT_GCC=gcc-10.2
COLLECT_LTO_WRAPPER=/tmp/tcloop/gcc10/usr/local/bin/../libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /mnt/store0/tools/gcc/objdir/../configure --prefix=/usr/local/ --program-suffix=-10.2 --enable-languages=c,c++ --disable-multilib --disable-docs
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.0 (GCC)
fmadio@fmadio100v2-228U:~$
```

Similarly for G++

```plaintext
g++-10.2 -v
```

Example output

```plaintext
fmadio@fmadio100v2-228U:~$ g++-10.2 -v
Using built-in specs.
COLLECT_GCC=g++-10.2
COLLECT_LTO_WRAPPER=/tmp/tcloop/gcc10/usr/local/bin/../libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /mnt/store0/tools/gcc/objdir/../configure --prefix=/usr/local/ --program-suffix=-10.2 --enable-languages=c,c++ --disable-multilib --disable-docs
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.0 (GCC)
fmadio@fmadio100v2-228U:~$
```