Due to the risks of in-place upgrading/uninstalling core components of the system, such as GCC and glibc, we recommend using devtoolset for lossless upgrading of GCC and glibc, as well as the maintenance of multiple environments.

Solutions

Execute the following command to comment out exclude=centos-release.

sed -i "s/^exclude=centos-release/#exclude=centos-release/g" /etc/yum.conf

Execute the following command to install the SCL repository.

yum install -y centos-release-scl

Execute the following command to install GCC 11.2 via devtoolset:

Install the GCC version based on your needs.

yum install -y devtoolset-11-gcc\*

Execute the following command to specify the GCC version to use.

tip

This command temporarily activates and enables GCC 11.2. After you exit the current Shell environment or restart the system, the original GCC version is restored.

To use GCC of a higher version permanently, execute the echo "source /opt/rh/devtoolset-11/enable" >> /etc/profile source /etc/profile command to configure GCC 11.2 in the environment variables.

source /opt/rh/devtoolset-11/enable

Execute the following command to verify whether the activation succeeds.

gcc -v

Last updated: 2026.04.13 16:50:02

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