devtoolset is called gcc-toolset in RHEL8.
The following commands worked for me:
microdnf install -y gcc-toolset-12
scl enable gcc-toolset-12 bash
gcc --version
# gcc (GCC) 12.1.1 20220628 (Red Hat 12.1.1-3)
devtoolset is called gcc-toolset in RHEL8.
The following commands worked for me:
microdnf install -y gcc-toolset-12
scl enable gcc-toolset-12 bash
gcc --version
# gcc (GCC) 12.1.1 20220628 (Red Hat 12.1.1-3)
According to that article, you can check if you have access to Red Hat Software Collections (RHSCL) by running the following command by the root user:
$ su -
# subscription-manager repos --list | egrep rhscl
If you have, enable necessary software repo and then install devtoolset:
# subscription-manager repos --enable rhel-7-server-optional-rpms
# yum install devtoolset-8
On Linux the dependency on system compilers have always been frustrating since it means your stuck with ancient GCC versions. But I must say I'm very impressed with devtoolset for RHEL/CentOS, it means you can use gcc-7 on old crappy RHEL6 that so many large companies insist on using. And you can ship the resulting binaries and it will run on plain vanilla RHEL installations!
what is devtoolset ?
devtoolset-7 also provides newer versions of lots of supporting debug and performance tools like gdb.
They (RH or Centos) also provide containerised versions of the build tools and the performance tools.
There is also a tech preview of the llvm-toolset, admittedly at clang v4 but still able to build those compatible binaries.
Note that you want to build using a host that is lower or same version as your minimum target version.
e.g. toolset-7 on host centos v6.7 will create bins compatible with 6.7, 6.9 and 7.x If your host is say centos 7.2 toolset-7 builds are only guaranteed to be compatible with v7.2+ targets.
Redhat's documentation is really good (and you can even get a free developer login to access more resources).
Also note that Centos provides similar options to RHEL.
The only downside is I don't think you can use the new ABI variant of CXX LIB as the ABI isn't compatible with older compilers like the default Centos gcc 4
Not really a problem as you can still use the C++11/14/17 features, just a few items are incompatible (such as list::size() still being O(n) and not const time, or strings still being COW)
https://www.softwarecollections.org/en/scls/rhscl/devtoolset-7/ (Lots of other tools/langs etc there too like Go,Rust,Python3 and lots of database updated versions etc.)
Not sure if you need to have a developer account, but an example of the documentation: https://access.redhat.com/documentation/en-us/red_hat_developer_toolset/7/html/7.0_release_notes/dts7.0_release
On CentOS I can do yum install devtoolset-8 followed by scl enable devtoolset-8 bash so that my paths are setup to use GCC et al packaged with that development toolset.
Is there an equivalent in AlmaLinux?
Hi,
The company I work for is developing a software package that is distributed to users. We made a linux port available last year and we're starting to run in to compatibility issues with different versions glibc/libstdc++, especially as we start moving to newer versions of gcc/g++. It seems like devtoolset will solve our problem, but I have a question about it which is this:
If we start using devtoolset-8 on centos 8, will our binaries work on centos 7?
If not, since devtoolset-8 is available on centos 7, can I use docker to build my distrutables on CentOS 7 with devtoolset-8 with the expectation that the automated tests will equally succceed on Centos 7?
Thanks for reading,
We're currently on ubuntu and we're looking to switch to centos 8.
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.