# Building OpenOCD from Sources for MacOS

[中文]

The following instructions are alternative to downloading binary OpenOCD from Espressif GitHub. To quickly setup the binary OpenOCD, instead of compiling it yourself, backup and proceed to section Setup of OpenOCD.

## Download Sources of OpenOCD

The sources for the ESP32-enabled variant of OpenOCD are available from Espressif GitHub under https://github.com/espressif/openocd-esp32. To download the sources, use the following commands:

    cd ~/esp
    git clone --recursive https://github.com/espressif/openocd-esp32.git

The clone of sources should be now saved in `~/esp/openocd-esp32` directory.

## Install Dependencies

Install packages that are required to compile OpenOCD using Homebrew:

    brew install automake libtool libusb wget gcc@4.9 pkg-config

## Build OpenOCD

Proceed with configuring and building OpenOCD:

    cd ~/esp/openocd-esp32
    ./bootstrap
    ./configure
    make

Optionally you can add `sudo make install` step at the end. Skip it, if you have an existing OpenOCD (from e.g., another development platform), as it may get overwritten.

Note

- Should an error occur, resolve it and try again until the command `make` works.

- Error `Unknown command 'raggedright'` may indicate that the required version of `texinfo` was not installed on your computer or installed but was not linked to your PATH. To resolve this issue make sure `texinfo` is installed and PATH is adjusted prior to the `./bootstrap` by running:

      brew install texinfo
      export PATH=/usr/local/opt/texinfo/bin:$PATH

- If there is a submodule problem from OpenOCD, please `cd` to the `openocd-esp32` directory and input `git submodule update --init`.

- If the `./configure` is successfully run, information of enabled JTAG will be printed under `OpenOCD configuration summary`.

- If the information of your device is not shown in the log, use `./configure` to enable it as described in `../openocd-esp32/doc/INSTALL.txt`.

- For details concerning compiling OpenOCD, please refer to `openocd-esp32/README.OSX`.

Once `make` process is successfully completed, the executable of OpenOCD will be saved in `~/esp/openocd-esp32/src/openocd` directory.

## Next Steps

To carry on with debugging environment setup, proceed to section Configuring ESP32 Target.

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