下午用 Matlab 編譯一個 cpp 程序,提示 gcc-5 版本太低,一氣之下,怒生 gcc-6!
1、添加源
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
2、安裝 gcc-6、g+±6
sudo apt-get install gcc-6 g++-6
3、配置 gcc,g++ 鏈接
我們查看系統當前使用的 gcc,發現是個符號鏈接:
ll /usr/bin/gcc
lrwxrwxrwx 1 root root 5 Nov 16 16:49 gcc -> gcc-5
g++ 也是:
ll /usr/bin/g++
lrwxrwxrwx 1 root root 5 Nov 16 16:49 g++ -> g++-5
所以我們重定向 gcc 鏈接到 gcc-6 即可:
cd /usr/bin
sudo sudo rm gcc
sudo ln -s gcc-6 gcc
同樣 g++ 重新鏈接到 g+±6:
sudo rm g++
sudo ln -s g++-6 g++
重新查看下 gcc、g++ 的鏈接:
ll /usr/bin/gcc
lrwxrwxrwx 1 root root 5 Nov 16 16:49 gcc -> gcc-6
ll /usr/bin/g++
lrwxrwxrwx 1 root root 5 Nov 16 16:49 g++ -> g++-6
順便查看下 gcc、g++ 的版本:
gcc --version
gcc (Ubuntu 6.5.0-2ubuntu1~16.04) 6.5.0 20181026
Copyright (C) 2017 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.
g++:
g++ --version
g++ (Ubuntu 6.5.0-2ubuntu1~16.04) 6.5.0 20181026
Copyright (C) 2017 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.
搞定!
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