是否可以gcc-6在 Ubuntu 19.10 上安装？有什么方法可以将其包含在默认存储库中或通过deb包安装吗？
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 19.10
Release: 19.10
Codename: eoan
$ sudo apt-get install gcc-6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package gcc-6 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'gcc-6' has no installation candidate