Homebrew tap that allows you to install CMake 3.

Installation

brew install botantony/cmake3/cmake3

or

brew tap botantony/cmake
brew install cmake3

After the formula is installed, binaries and other files are not symlinked to your $PATH in order to avoid conflict with the cmake formula from the core repository. If you want to use only CMake 3, you can add binaries to $PATH by adding this line to your shell config:

export PATH="$(brew --prefix cmake3)/bin:${PATH}"

However, if you plan to use CMake 3 and CMake 4 together, consider adding aliases to the binaries with a 3 suffix:

alias ccmake3="$(brew --prefix cmake3)/bin/ccmake"
alias cmake3="$(brew --prefix cmake3)/bin/cmake"
alias cpack3="$(brew --prefix cmake3)/bin/cpack"
alias ctest3="$(brew --prefix cmake3)/bin/ctest"

Note that you can't create a symlink to $(brew --prefix cmake3)/bin/cmake, as CMake will complain about "missing libraries".