Install it by:
sudo yum install centos-release-scl
sudo yum install devtoolset-4
The first command installs and enables Software Collections Repository on your CentOS machine. That repository provides the devtoolset package.
Install it by:
sudo yum install centos-release-scl
sudo yum install devtoolset-4
The first command installs and enables Software Collections Repository on your CentOS machine. That repository provides the devtoolset package.
This does not work on CentOS 6.10 anymore.
Those are the ones available without jumping through hoops:
[misp@misp-centos6 ~]$ yum search devtoolset |grep devtoolset|awk {'print $1'} |cut -f 1,2 -d\-|sort|uniq
===========================
devtoolset-6
devtoolset-6.x86_64
devtoolset-7
devtoolset-7.x86_64
CentOS build fails because of missing devtoolset-4
How to install devtoolset-4 on RHEL Workstation 7.2?
Install Obsolete Devtoolset Collection for CentOS - Stack Overflow
devtoolset-4-gcc* not available for CentOS 7.9
While Devtoolset-3 and 4 are located on the Centos mirror site, yum will not be able to find them as they were not included in the repodata on the site. These were probably excluded because they are EOL (end-of-life), and have dependency bugs (Bug 1410152). Try using the older Devtoolset-3 packages here, which do not have the dependency issues:
https://copr.fedorainfracloud.org/coprs/rhscl/devtoolset-3/
If you really want the packages from the centos.org site, I went with wget to download all the RPMs, then recreated a local yum repo. However, you'll see the dependency issues and yum install devtoolset-3 will fail.
$ wget -r -p -e robots=off --directory-prefix="/mnt/local-devtoolset3-repo" --recursive --no-clobber --no-parent http://mirror.centos.org/centos/6/sclo/x86_64/rh/devtoolset-3/
$ sudo yum install createrepo
$ cd /mnt/local-devtoolset3-repo
$ createrepo --database .
There was no DTS 5 release. It was skipped to align the DTS version with the GCC major release, once GCC switched to a yearly increasing version number.
DTS versions 3 and 4 are available from the centos-release-scl repository.
I am using CentOS 7.9 and I encountered the same problem after following instructions here to install and run gcc 11. I tried launching different versions of gcc and found only devtoolset-9 works, which corresponds to the file devtoolset-9 in /etc/scl/conf/ folder. So I copied devtoolset-9 to devtoolset-11 in the same folder, and gcc 11 gets working.
I ran into the same issue that you are facing and this is how I got it fixed:
- Just want to be careful, you need to exist the Terminal and open a fresh one to start. This way, you are not under any devtoolset's bash.
- Go to /opt/rh folder, run command ls -la to see if you have any devtoolset-* folder there. Let's say you have devtoolset-8, proceed step 2.
- Go to /etc/scl/prefixes folder, if you don't see devtoolset-8 file, you can create a new one as devtoolset-8, and type 1 line: /opt/rh, then save and quit that file.
- Once you are done, you can call: scl enable devtoolset-8 -- bash w/o any error. Good luck
To install the full tools-set including gfortran on centos 7:
yum install centos-release-scl
yum install devtoolset-8
scl enable devtoolset-8 -- bash
enable the tools:
source /opt/rh/devtoolset-8/enable
you may wish to put the command above in .bash_profile
ref: https://unix.stackexchange.com/questions/477360/centos-7-gcc-8-installation
devtoolset-8 was only released a short while ago. The linked installation instructions may be of use. However, your question pertains to CentOS, and this does not yet appear to have been made available yet. You can see some evidence of it being build for CentOS here, but it's not been updated for the final release yet.
You could ask on the SCL mailing list for an ETA, or wait until it appears in its final form. In the meantime, you could download the RPMs from koji directly.