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Merge pull request #8863 from emqx/address-building-on-apple-silicon-issue-in-readme 

add build instructions for apple silicon in readme
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Ivan Dyachkov 2022-09-01 13:06:28 +02:00 committed by GitHub
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@ -106,6 +106,27 @@ make
_build/emqx/rel/emqx/bin/emqx console
```
### Building on Apple silicon (M1, M2)
Homebrew on Apple silicon [changed default location of it's home directory](https://github.com/Homebrew/brew/issues/9177) from `/usr/local` to `/opt/homebrew` and as a result a few things broke in the process.
Concerning EMQX, when you install `unixodbc` package (one of the dependencies) via Homebrew, and build Erlang/OTP with [kerl](https://github.com/kerl/kerl), kerl will not be able to find `unixodbc`.
Here is how to solve it:
```bash
brew install unixodbc kerl
sudo ln -s $(realpath $(brew --prefix unixodbc)) /usr/local/odbc
export CC="/usr/bin/gcc -I$(brew --prefix unixodbc)/include"
export LDFLAGS="-L$(brew --prefix unixodbc)/lib"
kerl build 24.3
mkdir ~/.kerl/installations
kerl install 24.3 ~/.kerl/installations/24.3
. ~/.kerl/installations/24.3/activate
```
Then you can proceed with `make`.
## License
See [LICENSE](./LICENSE).