esp-idf/docs/en/get-started/macos-setup-cmake.rst

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Setup for CMake on Mac OS
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.. note::
The CMake-based build system is currently in preview release. Documentation may have missing gaps, and you may enocunter bugs (please report these). The original (non-cmake) version of this doc is `here <:doc:macos-setup>`.
Install Prerequisites
=====================
- install pip::
sudo easy_install pip
- install pyserial::
sudo pip install pyserial
- install CMake & Ninja build:
If you have HomeBrew, you can run::
brew install cmake ninja
Otherwise, consult the CMake_ and Ninja_ home pages for Mac OS installation.
- It is strongly recommended to also install ccache_ for faster builds. If you have HomeBrew, this can be done via ``brew install ccache``.
Toolchain Setup
===============
ESP32 toolchain for macOS is available for download from Espressif website:
https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-80-g6c4433a-5.2.0.tar.gz
Download this file, then extract it in ``~/esp`` directory::
mkdir -p ~/esp
cd ~/esp
tar -xzf ~/Downloads/xtensa-esp32-elf-osx-1.22.0-80-g6c4433a-5.2.0.tar.gz
.. _setup-macos-toolchain-add-it-to-path:
The toolchain will be extracted into ``~/esp/xtensa-esp32-elf/`` directory.
To use it, you will need to update your ``PATH`` environment variable in ``~/.profile`` file. To make ``xtensa-esp32-elf`` available for all terminal sessions, add the following line to your ``~/.profile`` file::
export PATH=$PATH:$HOME/esp/xtensa-esp32-elf/bin
Alternatively, you may create an alias for the above command. This way you can get the toolchain only when you need it. To do this, add different line to your ``~/.profile`` file::
alias get_esp32="export PATH=$PATH:$HOME/esp/xtensa-esp32-elf/bin"
Then when you need the toolchain you can type ``get_esp32`` on the command line and the toolchain will be added to your ``PATH``.
Next Steps
==========
To carry on with development environment setup, proceed to section :ref:`get-started-get-esp-idf-cmake`.
.. _cmake: https://cmake.org/
.. _ninja: https://ninja-build.org/
.. _ccache: https://ccache.samba.org/