********************************************************* Setup Toolchain for Mac OS from Scratch (Legacy GNU Make) ********************************************************* :link_to_translation:`zh_CN:[中文]` .. include:: ../gnu-make-legacy.rst .. note:: Standard process for installing the toolchain is described :doc:`here <macos-setup>`. See :ref:`Customized Setup of Toolchain <get-started-customized-setup-legacy>` section for some of the reasons why installing the toolchain from scratch may be necessary. Install Prerequisites ===================== - install pip:: sudo easy_install pip .. note:: ``pip`` will be used later for installing :ref:`the required Python packages <get-started-get-packages-legacy>`. Compile the Toolchain from Source ================================= - Install dependencies: - Install either MacPorts_ or homebrew_ package manager. MacPorts needs a full XCode installation, while homebrew only needs XCode command line tools. .. _homebrew: https://brew.sh/ .. _MacPorts: https://www.macports.org/install.php - with MacPorts:: sudo port install gsed gawk binutils gperf grep gettext wget libtool autoconf automake - with homebrew:: brew install gnu-sed gawk binutils gperftools gettext wget help2man libtool autoconf automake Create a case-sensitive filesystem image:: hdiutil create ~/esp/crosstool.dmg -volname "ctng" -size 10g -fs "Case-sensitive HFS+" Mount it:: hdiutil mount ~/esp/crosstool.dmg Create a symlink to your work directory:: mkdir -p ~/esp ln -s /Volumes/ctng ~/esp/ctng-volume Go into the newly created directory:: cd ~/esp/ctng-volume Download ``crosstool-NG`` and build it: .. include-build-file:: inc/scratch-build-code.inc Build the toolchain:: ./ct-ng xtensa-esp32-elf ./ct-ng build chmod -R u+w builds/xtensa-esp32-elf Toolchain will be built in ``~/esp/ctng-volume/crosstool-NG/builds/xtensa-esp32-elf``. Follow :ref:`instructions for standard setup <setup-macos-toolchain-add-it-to-path-legacy>` to add the toolchain to your ``PATH``. Next Steps ========== To carry on with development environment setup, proceed to section :ref:`get-started-get-esp-idf-legacy`.