yum install centos-release-scl-rh
yum install devtoolset-3-gcc devtoolset-3-gcc-c++
update-alternatives --install /usr/bin/gcc-4.9 gcc-4.9 /opt/rh/devtoolset-3/root/usr/bin/gcc 10
update-alternatives --install /usr/bin/g++-4.9 g++-4.9 /opt/rh/devtoolset-3/root/usr/bin/g++ 10
yum install centos-release-scl-rh
yum install devtoolset-3-gcc devtoolset-3-gcc-c++
update-alternatives --install /usr/bin/gcc-4.9 gcc-4.9 /opt/rh/devtoolset-3/root/usr/bin/gcc 10
update-alternatives --install /usr/bin/g++-4.9 g++-4.9 /opt/rh/devtoolset-3/root/usr/bin/g++ 10
For installing the system compilers gcc, g++, the install command is # yum install gcc-c++ → Provides version 4.8.5 : /usr/bin/{ gcc, g++ }.
Other options: 1. gcc53-c++-5.3.0-1.el6.x86_64.rpm → https://drive.google.com/file/d/0B7S255p3kFXNRm9FVnZYUnhyZzg/view?usp=sharing&resourcekey=0-1N6zQa6Sbl_WycG1O9I7JA : Download and install : # cd Downloads/ && yum install ./gcc53-c++-5.3.0-1.el6.x86_64.rpm ..... Provides /usr/bin/{gcc53, g++53}.
- The devtoolset´s : https://www.softwarecollections.org/en/scls/rhscl/devtoolset-6/ →
# yum-config-manager --enable rhel-server-rhscl-7-rpms
Install gcc, g++ version 4.9.2 : # yum install devtoolset-3-gcc-c++
Note : You can have as many gcc/g++ versions as you want, installed at the same time. ( The system compilers are a must.)
- gcc49-c++-4.9.3-1.el6.x86_64.rpm https://drive.google.com/file/d/1Pwq1ua80dGM72i7rpDNAIIdfcR1WK-hG/view?usp=sharing → Provides
/usr/bin/{gcc49, g++49}.
gcc63-c++-6.3.0-1.el7.x86_64.rpm https://drive.google.com/file/d/1t4WrgvpEP-6_NN3qMJhz9MS3CJhHrHKc/view?usp=sharing → Provides
/usr/bin/{gcc63, g++63}.gcc45-c++-4.5.4-1.el7.x86_64.rpm https://drive.google.com/file/d/15aRg-BPhuyaEyZA9Jy-iAyC21_pwN7nD/view?usp=sharing → Provides
/usr/bin/{gcc45, g++45, gfortran45}gcc42-c++-4.2.4-1.el6.x86_64.rpm https://drive.google.com/file/d/1eYWk6Nd63xeqqAUoJldNWRuwEGO6cAyv/view?usp=sharing → Provides
/usr/bin/{gcc42, g++42}
gcc73-c++-7.3.0-1.el7.x86_64.rpm https://drive.google.com/file/d/1PgwCP5tu8D0EJbJVTqJd7Vg8dJ4l4noi/view?usp=sharing → Provides
/usr/bin/{gcc73, g++73}gcc48-c++-4.8.5-1.el6.x86_64.rpm https://drive.google.com/file/d/1w6fW6oSflDDYZt_cOpGj3QMEmzUC8Q9L/view?usp=sharing → Provides
/usr/bin/{gcc48, g++48, gfortran48}gcc84-c++-8.4.0-1.el7.x86_64.rpm https://drive.google.com/file/d/1xgFtsiDi2uiB1B0AcOaSpxVizzET-pJf/view?usp=sharing → Provides
/usr/bin/{gcc84, g++84, gfortran84}