I'm still on Ubuntu 22.04 LTS but needed g++14. The sudo apt-get gcc-14 did not work for me, as it installed clang++14 for some reason (perhaps a misconfiguration on my part). What did work for me was following the instructions I found at https://www.dedicatedcore.com/blog/install-gcc-compiler-ubuntu/
The steps I took:
sudo apt install build-essential
sudo apt install libmpfr-dev libgmp3-dev libmpc-dev -y
wget https://ftp.gnu.org/gnu/gcc/gcc-14.1.0/gcc-14.1.0.tar.gz
tar -xf gcc-14.1.0.tar.gz
cd gcc-14.1.0
./configure -v --build=$(uname -m)-linux-gnu --host=$(uname -m)-linux-gnu --target=$(uname -m)-linux-gnu --prefix=/usr/local/gcc-14.1.0 --enable-checking=release --enable-languages=c,c++ --disable-multilib --program-suffix=-14.1.0
make
sudo make install
And if you would like to make it the default:
sudo update-alternatives --install /usr/bin/g++ g++ /usr/local/gcc-14.1.0/bin/g++-14.1.0 14
sudo update-alternatives --install /usr/bin/gcc gcc /usr/local/gcc-14.1.0/bin/gcc-14.1.0 14
After that, g++ showed I was running version 14.1.0. I was then able to compile my project that included some c++20/23 features that were not in the previous versions of g++ (chrono/format).
I'm still on Ubuntu 22.04 LTS but needed g++14. The sudo apt-get gcc-14 did not work for me, as it installed clang++14 for some reason (perhaps a misconfiguration on my part). What did work for me was following the instructions I found at https://www.dedicatedcore.com/blog/install-gcc-compiler-ubuntu/
The steps I took:
sudo apt install build-essential
sudo apt install libmpfr-dev libgmp3-dev libmpc-dev -y
wget https://ftp.gnu.org/gnu/gcc/gcc-14.1.0/gcc-14.1.0.tar.gz
tar -xf gcc-14.1.0.tar.gz
cd gcc-14.1.0
./configure -v --build=$(uname -m)-linux-gnu --host=$(uname -m)-linux-gnu --target=$(uname -m)-linux-gnu --prefix=/usr/local/gcc-14.1.0 --enable-checking=release --enable-languages=c,c++ --disable-multilib --program-suffix=-14.1.0
make
sudo make install
And if you would like to make it the default:
sudo update-alternatives --install /usr/bin/g++ g++ /usr/local/gcc-14.1.0/bin/g++-14.1.0 14
sudo update-alternatives --install /usr/bin/gcc gcc /usr/local/gcc-14.1.0/bin/gcc-14.1.0 14
After that, g++ showed I was running version 14.1.0. I was then able to compile my project that included some c++20/23 features that were not in the previous versions of g++ (chrono/format).
GCC-14 (and G++-14) is available in the Universe repository for Ubuntu 24.04, as evident in the Ubuntu Package archive.
It is equally evident that this package is not available for Ubuntu 22.04, so installing this on 22.04 will require some third-party interference, or you have to compile it yourself.
See here on how to enable the Universe repositories.
Videos
gcc-12 is not available in ubuntu 20.04, so we need to compile it from source code, here are the steps which I borrowed from this video:
- Step 1: clone gcc source code and checkout gcc-12 branch
$ git clone https://gcc.gnu.org/git/gcc.git gcc-source
$ cd gcc-source/
$ git branch -a
$ git checkout remotes/origin/releases/gcc-12
- Step 2: make another build dir
Note this is important as running ./configure from within the source directory is not supported as documented here.
$ mkdir ../gcc-12-build
$ cd ../gcc-12-build/
$ ./../gcc-source/configure --prefix=$HOME/install/gcc-12 --enable-languages=c,c++
- Step 3: installing GCC prequisites and run configure again
The missing libraries will be shown in above ./confgiure output, search and install them one by one.
$ apt-cache search MPFR
$ sudo apt-get install libmpfrc++-dev
$ apt-cache search MPC | grep dev
$ sudo apt-get install libmpc-dev
$ apt-cache search GMP | grep dev
$ sudo apt-get install libgmp-dev
$ sudo apt-get install gcc-multilib
$ ./../gcc-source/configure --prefix=$HOME/install/gcc-12 --enable-languages=c,c++
An alternative is to run the download_prerequisites script.
cd gcc-source/
$ ./contrib/download_prerequisites
$ ./../gcc-source/configure --prefix=$HOME/install/gcc-12 --enable-languages=c,c++
- Step 4: compile gcc-12
$ make -j16
Still flex is missing:
$ sudo apt-get install flex
$ ./../gcc-source/configure --prefix=$HOME/install/gcc-12 --enable-languages=c,c++
$ make -j16
$ make install
Another way is to use Ubuntu 22.04 where gcc-12 is available. In Ubuntu 22.04, gcc-12 can be installed with apt:
$ sudo apt install gcc-12
You can use Homebrew to install pre-built binaries. Follow instructions to install Homebrew at https://brew.sh/, then
brew install gcc for default GCC (currently 11) or brew install gcc@12 for gcc-12.
Note that it may compile missing dependencies.
The best way to correctly install gcc-4.9 and set it as your default gcc version use:
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-4.9 g++-4.9
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9
The --slave, with g++, will cause g++ to be switched along with gcc, to the same version. But, at this point gcc-4.9 will be your only version configured in update-alternatives, so add 4.8 to update-alternatives, so there actually is an alternative, by using:
sudo apt-get install gcc-4.8 g++-4.8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
Then you can check which one that is set, and change back and forth using:
sudo update-alternatives --config gcc
If you have an issue with update-alternatives gcc priority 60 not being higher than previous versions installed you can use the previous update-alternatives --config gcc command to check installed versions and use:
sudo update-alternatives --remove gcc
Or:
sudo update-alternatives --remove-all gcc
NOTE: You could skip installing the PPA Repository and just use /usr/bin/gcc-4.9-base but I prefer using the fresh updated toolchains.
For GCC 5.X or 6, the packages (and correspondingly, the commands) are just called gcc-5, gcc-6, etc. This is due to the change in GCC's version scheme, where 5.1 is the first GCC 5 release, and future 5.X releases are for bug fixes.
Ultimate mega master compatibility table
OK let's do this:
GCC clang
+-------------------------------------+-------------------------------------------------+
| 15 14 13 12 11 10 9 8 7 6 5 4 | 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 |
+-------+-------------------------------------+-------------------------------------------------+
| 25.10 | D M M M M | D M M M |
| 25.04 | D M M M | D M M M |
| 24.10 | D M M M | D M M M M M |
| 24.04 | M D M M M M | D M M M M |
| 23.10 | D M M M M | M D M M M |
| 23.10 | D M M M M | D M M M |
| 23.04 | M D M M M | M D M M |
| 22.10 | D M M M | D M M |
| 22.04 | P M D M M | D M M M |
| 21.10 | D M M M | D M M M M |
| 21.04 | M D M M M | D M M M |
| 20.10 | D M M M | D M M M M M |
| 20.04 | P D M M | D M M M M |
| 19.10 | D M M | |
| 19.04 | M D M M | |
| 18.10 | D M M M | |
| 18.04 | P P M D M M | M M M D M |
| 16.04 | P P P P D M | |
+-------+-------------------------------------+-------------------------------------------------+
D: Default GCC
sudo apt-get update sudo apt-get install gcc g++ gcc --versionWhatever the
gccpackage aliases to: https://packages.ubuntu.com/search?keywords=gcc and also present in manifests: How do I list the default installed packages?M: Present in Main repo
sudo apt-get update sudo apt-get install gcc-X g++-X gcc-X --versionAll Ubuntu versions that have a hit for a given GCC version, e.g. for GCC 7: https://packages.ubuntu.com/search?keywords=gcc-7 or clang 7 https://packages.ubuntu.com/search?keywords=clang-7
The minor versions of these packages can get updated from time to time within a single Ubuntu version (on the
.revisions?), e.g. 8.3.0 to 8.4.0 so we are not keeping track of that.P:
ppa:ubuntu-toolchain-r/test, which is owned by Ubuntu people and therefore can be trusted to not be a virus, although it is possibly unstable:sudo add-apt-repository ppa:ubuntu-toolchain-r/test sudo apt-get update sudo apt-get install gcc-X g++-X gcc-X --versionFull list: https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test
The minor versions of these packages can get updated from time to time, e.g. 8.3.0 to 8.4.0.
Blank spaces on the table mean either "no package available" or "I didn't bother to check". Notably I've not been looking into PPA packages too thoroughly. Edits accepted.
All the questions:
- install gcc-9 on Ubuntu 18.04?
- How to install gcc-7 or clang 4.0?
- install gcc-9 on Ubuntu 18.04?
- What are the GCC and clang versions available in Ubuntu 18.04?
How to set a non-default GCC as the default?
E.g., you installed /usr/bin/gcc-7 but you want to use that instead of /usr/bin/gcc when you run gcc main.c.
Use sudo update-alternatives as mentioned in other answers: https://askubuntu.com/a/581497/52975 It creates the required symlinks for you.
See also: What exactly does `update-alternatives` do?
How to build your own toolchain from source
If even the PPA is not old/new enough for you, see this:
- https://stackoverflow.com/questions/847179/multiple-glibc-libraries-on-a-single-host/52454603#52454603
- https://stackoverflow.com/questions/26305738/can-i-build-gcc-for-arm-with-an-x64-one/26306591#26306591
Older GCC version questions
- Ubuntu 20.04 - gcc version lower than gcc-7
- How to use an older version of GCC