We'll be installing GCC 4.8.1 and GDB through a tool called Homebrew. You can safely manually install them and the dependent versioned packages are still from your official ubuntu repository, so it's totally safe to do so.This section is intended to get you quickly started with C++ programming on your Mac. The unversioned packages from Debian 10 (codename buster) are versioned with 8.~.

Those unversioned gcc packages install nothing, just act as dependency declaration to the versioned gcc packages.

Make sure you have the corresponding packages with -8 suffix installed first.īuild-essential and a lot of other packages depend on unversioned packages (no version number in package name) such as gcc, g++, etc., and those unversioned packages depend on versioned packages (whose package name contains a version as suffix) such as gcc-X, g++-X, respectively.Ī unversioned package gcc with package version 8.~ depends on gcc-8, whereas the gcc package in offcial Ubuntu 18.04 repository comes with package version 7.~, which in turn depends on gcc-7. Go download unversioned gcc packages ( cpp/ gcc/ g++/ g++multilib/etc.) with package version 8, and install them using dpkg -i *.deb. The higher priority is the one that is picked automatically by update-alternatives. Press to keep the current choice, or type selection number: It will bring a prompt similar to this, which lets you pick the version to be used: There are 2 choices for the alternative gcc (providing /usr/bin/gcc). If you'll wish to change the default gcc version later on, run sudo update-alternatives -config gcc. This will give you the convenience of gcc being at the latest version, and still you will be able to invoke gcc-7 or gcc-8 directly. Sudo update-alternatives -install /usr/bin/gcc gcc /usr/bin/gcc-8 800 -slave /usr/bin/g++ g++ /usr/bin/g++-8 Use update-alternatives for having gcc redirected automatically to gcc-8: sudo update-alternatives -install /usr/bin/gcc gcc /usr/bin/gcc-7 700 -slave /usr/bin/g++ g++ /usr/bin/g++-7

I would suggest to let gcc-7 be installed, for satisfying build-essential and perhaps other dependent packages, and configure gcc-8 to be your default gcc installation. Gcc-7 and gcc-8 will happily co-live together.

Get gcc for mac