Difference between revisions of "Installing newer GCC versions in Ubuntu"
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Revision as of 19:56, 23 November 2017
$ sudo apt-get install gcc g++ gcc-5 g++-5 gcc-6 g++-6 gcc-7 g++-7
$ sudo update-alternatives --remove-all gcc
$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 90 --slave /usr/bin/g++ g++ /usr/bin/g++-5 $ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 80 --slave /usr/bin/g++ g++ /usr/bin/g++-6 $ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 70 --slave /usr/bin/g++ g++ /usr/bin/g++-7
$ sudo update-alternatives --config gcc
There are 3 choices for the alternative gcc (providing /usr/bin/gcc). Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/bin/gcc-5 90 auto mode 1 /usr/bin/gcc-5 90 manual mode 2 /usr/bin/gcc-6 80 manual mode 3 /usr/bin/gcc-7 70 manual mode Press <enter> to keep the current choice[*], or type selection number: 3 update-alternatives: using /usr/bin/gcc-7 to provide /usr/bin/gcc (gcc) in manual mode
$ g++ -v .... gcc version 7.2.0 (Ubuntu 7.2.0-1ubuntu1~16.04)
