how to install gcc 4.9.2 on RHEL 7.4

问题:

I am trying to install gcc and g++ 4.9.2 on Linux. I'm pretty new with Linux and i saw some guides of how to install, but each time I encountered with another problem. I don't have any gcc right now on my machine. my Linux version is: Red Hat Enterprise Linux Server release 7.4 (Maipo) can someone help me and give me instructions from the beginning to the end how to do this properly? thank you very much.

回答1:

It is very simple, run the command as root

yum install gcc

It will check in the repositories and ask you to download.

回答2:

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/0B7S255p3kFXNbTBneHgwSzBodFE/view?usp=sharing : Download and install : # cd Downloads/ && yum install ./gcc53-c++-5.3.0-1.el6.x86_64.rpm ..... Provides /usr/bin/{gcc53, g++53}.

2. 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.)

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3. 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}.

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4. 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}.

5. 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}

6. 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}

回答3:

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