How to install mysql2 gem on m1 Mac

mysql2-m1.md

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

brew install mysql-client openssl zstd

Install mysql2 gem.

Replace 0.5.2 with whichever version you are using

 gem install mysql2 -v '0.5.2' -- --with-mysql-lib=$(brew --prefix mysql-client)/lib --with-mysql-dir=$(brew --prefix mysql-client) --with-mysql-config=$(brew --prefix mysql-client)/bin/mysql_config --with-mysql-include=$(brew --prefix mysql-client)/include --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib -L$(brew --prefix zlib)/lib" --with-cppflags="-I$(brew --prefix openssl)/include -I$(brew --prefix zlib)/include"

Thank you. it worked. :-)

thanks!

Small update from the instructions above: brew install mysql@5.7 as brew install mysql now defaults to the 8.X series

And now this doesn't work in Feb 2024 anymore with the latest XCode.

client.c:178:24: error: call to undeclared function 'rb_tainted_str_new2'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] VALUE rb_sql_state = rb_tainted_str_new2(mysql_sqlstate(wrapper->client));

But we just need one more argument

gem install mysql2 -v '0.5.3' -- --with-mysql-config=$(brew --prefix mysql-client)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

But this will not find the new homebrew location, so remove the version fixing and do

gem install mysql2 -- --with-mysql-config=$(brew --prefix mysql-client)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

And now this doesn't work in Feb 2024 anymore with the latest XCode.

client.c:178:24: error: call to undeclared function 'rb_tainted_str_new2'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] VALUE rb_sql_state = rb_tainted_str_new2(mysql_sqlstate(wrapper->client));

But we just need one more argument

gem install mysql2 -v '0.5.3' -- --with-mysql-config=$(brew --prefix mysql-client)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

But this will not find the new homebrew location, so remove the version fixing and do

gem install mysql2 -- --with-mysql-config=$(brew --prefix mysql-client)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

Last command worked for me Mac Sonoma 14.2.1

gem install mysql2 -- --with-mysql-config=$(brew --prefix mysql)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

Thanks, @llothar, this is the only command that worked for me in February 2024 on Mac OS Sonoma for the M1.

@llothar's last command worked for me as well on my M1. Thanks a ton - have been beating myself up for the past 24 hours!

@llothar, @cereberaldebris, @timokleemann, @rajanverma-me I just updated this gist with the command that is working for me as of today February 08, 2024. Would any one of you mind testing it to confirm it is also working for you?

This worked for me on Mac Sonoma 14.2.1

brew install mysql-client openssl zstd

gem install mysql2  -- --with-mysql-config=$(brew --prefix mysql)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

This worked for me on Mac Sonoma 14.2.1

brew install mysql-client openssl zstd

gem install mysql2  -- --with-mysql-config=$(brew --prefix mysql)/bin/mysql_config --with-ldflags="-L$(brew --prefix zstd)/lib -L$(brew --prefix openssl)/lib" --with-cppflags=-I$(brew --prefix openssl)/include --with-cflags="-Wno-error=implicit-function-declaration"

This worked perfectly, even with using rbenv. Thanks!

for sonoma 14.3.1, anyone???

@caroline-medeiros I am running this on the latest macOS Sonoma and it is working.

I needed to add this cflags --with-cflags="-Wno-error=implicit-function-declaration" thanks!

Thanks. your solution is work. I try many before but it doesn't work

@trevorh you are awesome