1.gcc introduction
GCC (GNU Compiler Collection) is an open source compiler suite developed and maintained by the GNU ( recursive abbreviation for GNU 's Not Unix!) project. It is a powerful and widely used compiler that supports many programming languages, including C, C++, Objective-C, Fortran, Ada, and several others.
On CentOS, GCC is the default compiler suite, which provides a set of tools and libraries for compiling source code into executable programs, library files, or other object files. Here is some important information about GCC:
- Version: GCC's version number is updated over time. Each version brings new features, performance improvements, and bug fixes. You can use the gcc --version command to view the installed GCC version.
- Supported languages: GCC supports a variety of programming languages, including C, C++, Objective-C, Fortran, Ada, Go, and others. By using different commands like gcc, g++, gfortran, etc. you can choose to compile a specific language.
- Compilation options: GCC provides a wide range of compilation options to control the behavior of the compilation process. You can use these options to specify optimization levels, debugging information, warning levels, target architecture, and more.
- Standard library: GCC comes with a set of standard libraries, including C standard library (libc), C++ standard library (libstdc++), etc. These libraries provide a variety of commonly used functions and data structures that developers can use in their programs.
- Extensions: GCC provides many extensions to support specific language features or platform-specific functionality. These extensions can be enabled or disabled via compile options.
GCC is a powerful and flexible compiler suite that is widely used to develop various types of applications and system software. As the default compiler in CentOS, it provides rich functions and extensive language support, allowing developers to compile and build various projects
2.gcc quick upgrade
The main reason for many compilation problems is that the current gcc version does not match. Upgrading to the required gcc version can solve the problem.
To upgrade your GCC version on CentOS, you can use the following steps:
- Update system:
First, make sure your system is updated to the latest version. Run the following command to update the CentOS package list and installed packages:
sudo yum updateThis will update your system and install the latest packages.
- Install Devtoolset:
CentOS provides a collection of software called Devtoolset, which includes newer versions of GCC. You can install Devtoolset using the following command:
sudo yum install centos-release-scl
sudo yum install devtoolset-<version><version> is the version number of Devtoolset you want to install. For example, if you want to install Devtoolset-9, replace <version> with 9.
- Enable Devtoolset:
After the installation is complete, use the following command to enable the installed version of Devtoolset:
scl enable devtoolset-<version> bash
This will enable Devtoolset in the current terminal session, setting the new GCC version as the default.
- Verify GCC version:
Run the following command to verify the installed GCC version:
gcc --versionIf the new version number you installed is displayed, the upgrade was successful.
- Enable Devtoolset settings:
Note that newer versions of GCC are provided with Devtoolset, but need to be explicitly enabled when using them. This means that if you open a new terminal window in a new terminal session, you will no longer use the version of GCC provided by Devtoolset. You can enable Devtoolset again by running the scl enable devtoolset-<version> bash command. If you want to use a new version of GCC in every new terminal window, you can add the enable command scl enable devtoolset-<version> bash to your shell profile (such as ~/.bashrc or ~/.bash_profile).
Additionally, upgrading GCC may have an impact on the system and other software packages. Make sure to back up important data before upgrading and test after the upgrade to ensure all applications and dependencies are still working properly.
- Installation process output:
[xxx]# gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[xxx]# yum install devtoolset-11
Loaded plugins: fastestmirror, langpacks, nvidia
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 15 kB 00:00:00
base | 3.6 kB 00:00:00
centos-sclo-rh | 3.0 kB 00:00:00
centos-sclo-sclo | 3.0 kB 00:00:00
cuda-rhel7-x86_64 | 3.0 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 2.9 kB 00:00:00
libnvidia-container/x86_64/signature | 833 B 00:00:00
libnvidia-container/x86_64/signature | 2.1 kB 00:00:00 !!!
nvidia-container-runtime/x86_64/signature | 833 B 00:00:00
nvidia-container-runtime/x86_64/signature | 2.1 kB 00:00:00 !!!
nvidia-docker/x86_64/signature | 833 B 00:00:00
nvidia-docker/x86_64/signature | 2.1 kB 00:00:00 !!!
updates | 2.9 kB 00:00:00
cuda-rhel7-x86_64/primary_db | 2.1 MB 00:00:02
Resolving Dependencies
--> Running transaction check
---> Package devtoolset-11.x86_64 0:11.1-2.el7 will be installed
--> Processing Dependency: devtoolset-11-perftools for package: devtoolset-11-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-runtime for package: devtoolset-11-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-toolchain for package: devtoolset-11-11.1-2.el7.x86_64
--> Running transaction check
---> Package devtoolset-11-perftools.x86_64 0:11.1-2.el7 will be installed
--> Processing Dependency: devtoolset-11-systemtap for package: devtoolset-11-perftools-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-valgrind for package: devtoolset-11-perftools-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-oprofile for package: devtoolset-11-perftools-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-dyninst for package: devtoolset-11-perftools-11.1-2.el7.x86_64
---> Package devtoolset-11-runtime.x86_64 0:11.1-2.el7 will be installed
---> Package devtoolset-11-toolchain.x86_64 0:11.1-2.el7 will be installed
--> Processing Dependency: devtoolset-11-gcc for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-gcc-c++ for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-gcc-gfortran for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-binutils for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-gdb for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-strace for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-dwz for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-elfutils for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-ltrace for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-make for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-annobin for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Processing Dependency: devtoolset-11-memstomp for package: devtoolset-11-toolchain-11.1-2.el7.x86_64
--> Running transaction check
---> Package devtoolset-11-annobin-docs.noarch 0:10.38-1.el7 will be installed
---> Package devtoolset-11-binutils.x86_64 0:2.36.1-1.el7.2 will be installed
---> Package devtoolset-11-dwz.x86_64 0:0.14-2.el7 will be installed
---> Package devtoolset-11-dyninst.x86_64 0:11.0.0-1.el7 will be installed
---> Package devtoolset-11-elfutils.x86_64 0:0.185-2.el7 will be installed
--> Processing Dependency: devtoolset-11-elfutils-debuginfod-client(x86-64) = 0.185-2.el7 for package: devtoolset-11-elfutils-0.185-2.el7.x86_64
--> Processing Dependency: devtoolset-11-elfutils-libelf(x86-64) = 0.185-2.el7 for package: devtoolset-11-elfutils-0.185-2.el7.x86_64
--> Processing Dependency: devtoolset-11-elfutils-libs(x86-64) = 0.185-2.el7 for package: devtoolset-11-elfutils-0.185-2.el7.x86_64
--> Processing Dependency: libdw.so.dts.1(ELFUTILS_0.177)(64bit) for package: devtoolset-11-elfutils-0.185-2.el7.x86_64
---> Package devtoolset-11-gcc.x86_64 0:11.2.1-9.1.el7 will be installed
---> Package devtoolset-11-gcc-c++.x86_64 0:11.2.1-9.1.el7 will be installed
--> Processing Dependency: devtoolset-11-libstdc++-devel = 11.2.1-9.1.el7 for package: devtoolset-11-gcc-c++-11.2.1-9.1.el7.x86_64
---> Package devtoolset-11-gcc-gfortran.x86_64 0:11.2.1-9.1.el7 will be installed
--> Processing Dependency: devtoolset-11-libquadmath-devel = 11.2.1-9.1.el7 for package: devtoolset-11-gcc-gfortran-11.2.1-9.1.el7.x86_64
---> Package devtoolset-11-gdb.x86_64 0:10.2-6.el7 will be installed
---> Package devtoolset-11-ltrace.x86_64 0:0.7.91-1.el7 will be installed
---> Package devtoolset-11-make.x86_64 1:4.3-1.el7 will be installed
---> Package devtoolset-11-memstomp.x86_64 0:0.1.5-6.el7 will be installed
---> Package devtoolset-11-oprofile.x86_64 0:1.4.0-2.el7 will be installed
---> Package devtoolset-11-strace.x86_64 0:5.13-3.3.el7 will be installed
---> Package devtoolset-11-systemtap.x86_64 0:4.5-7.el7 will be installed
--> Processing Dependency: devtoolset-11-systemtap-client = 4.5-7.el7 for package: devtoolset-11-systemtap-4.5-7.el7.x86_64
--> Processing Dependency: devtoolset-11-systemtap-devel = 4.5-7.el7 for package: devtoolset-11-systemtap-4.5-7.el7.x86_64
---> Package devtoolset-11-valgrind.x86_64 1:3.17.0-4.el7 will be installed
--> Running transaction check
---> Package devtoolset-11-elfutils-debuginfod-client.x86_64 0:0.185-2.el7 will be installed
---> Package devtoolset-11-elfutils-libelf.x86_64 0:0.185-2.el7 will be installed
---> Package devtoolset-11-elfutils-libs.x86_64 0:0.185-2.el7 will be installed
---> Package devtoolset-11-libquadmath-devel.x86_64 0:11.2.1-9.1.el7 will be installed
---> Package devtoolset-11-libstdc++-devel.x86_64 0:11.2.1-9.1.el7 will be installed
---> Package devtoolset-11-systemtap-client.x86_64 0:4.5-7.el7 will be installed
--> Processing Dependency: devtoolset-11-systemtap-runtime = 4.5-7.el7 for package: devtoolset-11-systemtap-client-4.5-7.el7.x86_64
---> Package devtoolset-11-systemtap-devel.x86_64 0:4.5-7.el7 will be installed
--> Processing Dependency: elfutils-devel for package: devtoolset-11-systemtap-devel-4.5-7.el7.x86_64
--> Running transaction check
---> Package devtoolset-11-systemtap-runtime.x86_64 0:4.5-7.el7 will be installed
---> Package elfutils-devel.x86_64 0:0.176-5.el7 will be installed
--> Processing Dependency: pkgconfig(liblzma) for package: elfutils-devel-0.176-5.el7.x86_64
--> Running transaction check
---> Package xz-devel.x86_64 0:5.2.2-2.el7_9 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================================================================================
Package Arch Version Repository Size
==========================================================================================================================================================
Installing:
devtoolset-11 x86_64 11.1-2.el7 centos-sclo-rh 5.7 k
Installing for dependencies:
devtoolset-11-annobin-docs noarch 10.38-1.el7 centos-sclo-rh 107 k
devtoolset-11-binutils x86_64 2.36.1-1.el7.2 centos-sclo-rh 6.3 M
devtoolset-11-dwz x86_64 0.14-2.el7 centos-sclo-rh 118 k
devtoolset-11-dyninst x86_64 11.0.0-1.el7 centos-sclo-rh 4.3 M
devtoolset-11-elfutils x86_64 0.185-2.el7 centos-sclo-rh 432 k
devtoolset-11-elfutils-debuginfod-client x86_64 0.185-2.el7 centos-sclo-rh 58 k
devtoolset-11-elfutils-libelf x86_64 0.185-2.el7 centos-sclo-rh 214 k
devtoolset-11-elfutils-libs x86_64 0.185-2.el7 centos-sclo-rh 266 k
devtoolset-11-gcc x86_64 11.2.1-9.1.el7 centos-sclo-rh 32 M
devtoolset-11-gcc-c++ x86_64 11.2.1-9.1.el7 centos-sclo-rh 12 M
devtoolset-11-gcc-gfortran x86_64 11.2.1-9.1.el7 centos-sclo-rh 13 M
devtoolset-11-gdb x86_64 10.2-6.el7 centos-sclo-rh 3.9 M
devtoolset-11-libquadmath-devel x86_64 11.2.1-9.1.el7 centos-sclo-rh 180 k
devtoolset-11-libstdc++-devel x86_64 11.2.1-9.1.el7 centos-sclo-rh 3.6 M
devtoolset-11-ltrace x86_64 0.7.91-1.el7 centos-sclo-rh 134 k
devtoolset-11-make x86_64 1:4.3-1.el7 centos-sclo-rh 515 k
devtoolset-11-memstomp x86_64 0.1.5-6.el7 centos-sclo-rh 443 k
devtoolset-11-oprofile x86_64 1.4.0-2.el7 centos-sclo-rh 1.8 M
devtoolset-11-perftools x86_64 11.1-2.el7 centos-sclo-rh 3.1 k
devtoolset-11-runtime x86_64 11.1-2.el7 centos-sclo-rh 20 k
devtoolset-11-strace x86_64 5.13-3.3.el7 centos-sclo-rh 1.3 M
devtoolset-11-systemtap x86_64 4.5-7.el7 centos-sclo-rh 15 k
devtoolset-11-systemtap-client x86_64 4.5-7.el7 centos-sclo-rh 3.7 M
devtoolset-11-systemtap-devel x86_64 4.5-7.el7 centos-sclo-rh 2.3 M
devtoolset-11-systemtap-runtime x86_64 4.5-7.el7 centos-sclo-rh 437 k
devtoolset-11-toolchain x86_64 11.1-2.el7 centos-sclo-rh 3.3 k
devtoolset-11-valgrind x86_64 1:3.17.0-4.el7 centos-sclo-rh 11 M
elfutils-devel x86_64 0.176-5.el7 base 90 k
xz-devel x86_64 5.2.2-2.el7_9 updates 46 k
Transaction Summary
==========================================================================================================================================================
Install 1 Package (+29 Dependent packages)
Total download size: 99 M
Installed size: 292 M
Is this ok [y/d/N]: y
Downloading packages:
(1/30): devtoolset-11-11.1-2.el7.x86_64.rpm | 5.7 kB 00:00:00
(2/30): devtoolset-11-annobin-docs-10.38-1.el7.noarch.rpm | 107 kB 00:00:00
(3/30): devtoolset-11-dwz-0.14-2.el7.x86_64.rpm | 118 kB 00:00:00
(4/30): devtoolset-11-binutils-2.36.1-1.el7.2.x86_64.rpm | 6.3 MB 00:00:01
(5/30): devtoolset-11-dyninst-11.0.0-1.el7.x86_64.rpm | 4.3 MB 00:00:01
(6/30): devtoolset-11-elfutils-debuginfod-client-0.185-2.el7.x86_64.rpm | 58 kB 00:00:00
(7/30): devtoolset-11-elfutils-0.185-2.el7.x86_64.rpm | 432 kB 00:00:00
(8/30): devtoolset-11-elfutils-libelf-0.185-2.el7.x86_64.rpm | 214 kB 00:00:00
(9/30): devtoolset-11-elfutils-libs-0.185-2.el7.x86_64.rpm | 266 kB 00:00:00
(10/30): devtoolset-11-gcc-c++-11.2.1-9.1.el7.x86_64.rpm | 12 MB 00:00:02
(11/30): devtoolset-11-gcc-gfortran-11.2.1-9.1.el7.x86_64.rpm | 13 MB 00:00:03
(12/30): devtoolset-11-gdb-10.2-6.el7.x86_64.rpm | 3.9 MB 00:00:00
(13/30): devtoolset-11-gcc-11.2.1-9.1.el7.x86_64.rpm | 32 MB 00:00:06
(14/30): devtoolset-11-libquadmath-devel-11.2.1-9.1.el7.x86_64.rpm | 180 kB 00:00:00
(15/30): devtoolset-11-ltrace-0.7.91-1.el7.x86_64.rpm | 134 kB 00:00:00
(16/30): devtoolset-11-make-4.3-1.el7.x86_64.rpm | 515 kB 00:00:00
(17/30): devtoolset-11-libstdc++-devel-11.2.1-9.1.el7.x86_64.rpm | 3.6 MB 00:00:00
(18/30): devtoolset-11-memstomp-0.1.5-6.el7.x86_64.rpm | 443 kB 00:00:00
(19/30): devtoolset-11-perftools-11.1-2.el7.x86_64.rpm | 3.1 kB 00:00:00
(20/30): devtoolset-11-runtime-11.1-2.el7.x86_64.rpm | 20 kB 00:00:00
(21/30): devtoolset-11-oprofile-1.4.0-2.el7.x86_64.rpm | 1.8 MB 00:00:00
(22/30): devtoolset-11-systemtap-4.5-7.el7.x86_64.rpm | 15 kB 00:00:00
(23/30): devtoolset-11-strace-5.13-3.3.el7.x86_64.rpm | 1.3 MB 00:00:00
(24/30): devtoolset-11-systemtap-devel-4.5-7.el7.x86_64.rpm | 2.3 MB 00:00:00
(25/30): devtoolset-11-systemtap-client-4.5-7.el7.x86_64.rpm | 3.7 MB 00:00:00
(26/30): devtoolset-11-systemtap-runtime-4.5-7.el7.x86_64.rpm | 437 kB 00:00:00
(27/30): devtoolset-11-toolchain-11.1-2.el7.x86_64.rpm | 3.3 kB 00:00:00
(28/30): elfutils-devel-0.176-5.el7.x86_64.rpm | 90 kB 00:00:00
(29/30): xz-devel-5.2.2-2.el7_9.x86_64.rpm | 46 kB 00:00:00
(30/30): devtoolset-11-valgrind-3.17.0-4.el7.x86_64.rpm | 11 MB 00:00:01
----------------------------------------------------------------------------------------------------------------------------------------------------------
Total 7.4 MB/s | 99 MB 00:00:13
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : devtoolset-11-runtime-11.1-2.el7.x86_64 1/30
Installing : devtoolset-11-elfutils-libelf-0.185-2.el7.x86_64 2/30
Installing : devtoolset-11-elfutils-libs-0.185-2.el7.x86_64 3/30
Installing : devtoolset-11-elfutils-debuginfod-client-0.185-2.el7.x86_64 4/30
Installing : devtoolset-11-elfutils-0.185-2.el7.x86_64 5/30
Installing : devtoolset-11-dyninst-11.0.0-1.el7.x86_64 6/30
Installing : devtoolset-11-binutils-2.36.1-1.el7.2.x86_64 7/30
Installing : devtoolset-11-systemtap-runtime-4.5-7.el7.x86_64 8/30
Installing : devtoolset-11-systemtap-client-4.5-7.el7.x86_64 9/30
Installing : devtoolset-11-strace-5.13-3.3.el7.x86_64 10/30
Installing : devtoolset-11-dwz-0.14-2.el7.x86_64 11/30
Installing : devtoolset-11-gdb-10.2-6.el7.x86_64 12/30
Installing : devtoolset-11-libstdc++-devel-11.2.1-9.1.el7.x86_64 13/30
Installing : 1:devtoolset-11-make-4.3-1.el7.x86_64 14/30
Installing : devtoolset-11-annobin-docs-10.38-1.el7.noarch 15/30
Installing : 1:devtoolset-11-valgrind-3.17.0-4.el7.x86_64 16/30
Installing : devtoolset-11-oprofile-1.4.0-2.el7.x86_64 17/30
Installing : devtoolset-11-ltrace-0.7.91-1.el7.x86_64 18/30
Installing : devtoolset-11-memstomp-0.1.5-6.el7.x86_64 19/30
Installing : xz-devel-5.2.2-2.el7_9.x86_64 20/30
Installing : devtoolset-11-gcc-11.2.1-9.1.el7.x86_64 21/30
Installing : devtoolset-11-gcc-c++-11.2.1-9.1.el7.x86_64 22/30
Installing : devtoolset-11-libquadmath-devel-11.2.1-9.1.el7.x86_64 23/30
Installing : devtoolset-11-gcc-gfortran-11.2.1-9.1.el7.x86_64 24/30
Installing : devtoolset-11-toolchain-11.1-2.el7.x86_64 25/30
Installing : elfutils-devel-0.176-5.el7.x86_64 26/30
Installing : devtoolset-11-systemtap-devel-4.5-7.el7.x86_64 27/30
Installing : devtoolset-11-systemtap-4.5-7.el7.x86_64 28/30
Installing : devtoolset-11-perftools-11.1-2.el7.x86_64 29/30
Installing : devtoolset-11-11.1-2.el7.x86_64 30/30
Verifying : devtoolset-11-strace-5.13-3.3.el7.x86_64 1/30
Verifying : devtoolset-11-dwz-0.14-2.el7.x86_64 2/30
Verifying : xz-devel-5.2.2-2.el7_9.x86_64 3/30
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Verifying : elfutils-devel-0.176-5.el7.x86_64 5/30
Verifying : devtoolset-11-elfutils-debuginfod-client-0.185-2.el7.x86_64 6/30
Verifying : devtoolset-11-11.1-2.el7.x86_64 7/30
Verifying : devtoolset-11-gdb-10.2-6.el7.x86_64 8/30
Verifying : devtoolset-11-libstdc++-devel-11.2.1-9.1.el7.x86_64 9/30
Verifying : devtoolset-11-gcc-gfortran-11.2.1-9.1.el7.x86_64 10/30
Verifying : devtoolset-11-perftools-11.1-2.el7.x86_64 11/30
Verifying : 1:devtoolset-11-make-4.3-1.el7.x86_64 12/30
Verifying : devtoolset-11-elfutils-0.185-2.el7.x86_64 13/30
Verifying : devtoolset-11-gcc-c++-11.2.1-9.1.el7.x86_64 14/30
Verifying : devtoolset-11-systemtap-client-4.5-7.el7.x86_64 15/30
Verifying : devtoolset-11-systemtap-runtime-4.5-7.el7.x86_64 16/30
Verifying : devtoolset-11-elfutils-libelf-0.185-2.el7.x86_64 17/30
Verifying : devtoolset-11-toolchain-11.1-2.el7.x86_64 18/30
Verifying : devtoolset-11-libquadmath-devel-11.2.1-9.1.el7.x86_64 19/30
Verifying : devtoolset-11-annobin-docs-10.38-1.el7.noarch 20/30
Verifying : devtoolset-11-gcc-11.2.1-9.1.el7.x86_64 21/30
Verifying : devtoolset-11-runtime-11.1-2.el7.x86_64 22/30
Verifying : 1:devtoolset-11-valgrind-3.17.0-4.el7.x86_64 23/30
Verifying : devtoolset-11-oprofile-1.4.0-2.el7.x86_64 24/30
Verifying : devtoolset-11-ltrace-0.7.91-1.el7.x86_64 25/30
Verifying : devtoolset-11-systemtap-devel-4.5-7.el7.x86_64 26/30
Verifying : devtoolset-11-elfutils-libs-0.185-2.el7.x86_64 27/30
Verifying : devtoolset-11-binutils-2.36.1-1.el7.2.x86_64 28/30
Verifying : devtoolset-11-dyninst-11.0.0-1.el7.x86_64 29/30
Verifying : devtoolset-11-memstomp-0.1.5-6.el7.x86_64 30/30
Installed:
devtoolset-11.x86_64 0:11.1-2.el7
Dependency Installed:
devtoolset-11-annobin-docs.noarch 0:10.38-1.el7 devtoolset-11-binutils.x86_64 0:2.36.1-1.el7.2
devtoolset-11-dwz.x86_64 0:0.14-2.el7 devtoolset-11-dyninst.x86_64 0:11.0.0-1.el7
devtoolset-11-elfutils.x86_64 0:0.185-2.el7 devtoolset-11-elfutils-debuginfod-client.x86_64 0:0.185-2.el7
devtoolset-11-elfutils-libelf.x86_64 0:0.185-2.el7 devtoolset-11-elfutils-libs.x86_64 0:0.185-2.el7
devtoolset-11-gcc.x86_64 0:11.2.1-9.1.el7 devtoolset-11-gcc-c++.x86_64 0:11.2.1-9.1.el7
devtoolset-11-gcc-gfortran.x86_64 0:11.2.1-9.1.el7 devtoolset-11-gdb.x86_64 0:10.2-6.el7
devtoolset-11-libquadmath-devel.x86_64 0:11.2.1-9.1.el7 devtoolset-11-libstdc++-devel.x86_64 0:11.2.1-9.1.el7
devtoolset-11-ltrace.x86_64 0:0.7.91-1.el7 devtoolset-11-make.x86_64 1:4.3-1.el7
devtoolset-11-memstomp.x86_64 0:0.1.5-6.el7 devtoolset-11-oprofile.x86_64 0:1.4.0-2.el7
devtoolset-11-perftools.x86_64 0:11.1-2.el7 devtoolset-11-runtime.x86_64 0:11.1-2.el7
devtoolset-11-strace.x86_64 0:5.13-3.3.el7 devtoolset-11-systemtap.x86_64 0:4.5-7.el7
devtoolset-11-systemtap-client.x86_64 0:4.5-7.el7 devtoolset-11-systemtap-devel.x86_64 0:4.5-7.el7
devtoolset-11-systemtap-runtime.x86_64 0:4.5-7.el7 devtoolset-11-toolchain.x86_64 0:11.1-2.el7
devtoolset-11-valgrind.x86_64 1:3.17.0-4.el7 elfutils-devel.x86_64 0:0.176-5.el7
xz-devel.x86_64 0:5.2.2-2.el7_9
Complete!
[xxx]# scl enable devtoolset-11 bash
(base) [xxx]# gcc --version
gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.