MySQL Gem installation error on Rails - mysql

Question

I am deploying my Rails application using Chef. While
gem install mysql
am getting hte following error,
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
extension.
/opt/chef/embedded/bin/ruby extconf.rb checking for
mysql_ssl_set()... * extconf.rb failed * Could not create Makefile
due to some reason, probably lack of necessary libraries and/or
headers. Check the mkmf.log file for more details. You may need
configuration options.
Provided configuration options: --with-opt-dir --with-opt-include
--without-opt-include=${opt-dir}/include --with-opt-lib
--without-opt-lib=${opt-dir}/lib --with-make-prog
--without-make-prog --srcdir=. --curdir
--ruby=/opt/chef/embedded/bin/ruby --with-mysql-config
--without-mysql-config
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:381:in try_do': The
compiler failed to generate an executable file. (RuntimeError) You
have to install development tools first. from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:461:intry_link0' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:476:in try_link' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:619:intry_func' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:894:in block in have_func'
from /opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:790:inblock in
checking_for' from /opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:284:in
block (2 levels) in postpone' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:254:inopen' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:284:in block in postpone'
from /opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:254:inopen' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:280:in postpone' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:789:inchecking_for' from
/opt/chef/embedded/lib/ruby/1.9.1/mkmf.rb:893:in have_func' from
extconf.rb:45:in'
Gem files will remain installed in
/var/www/project-name/releases/daf93f4783a7238e5a8198c1fd50e4e1de93f654/vendor/bundle/ruby/1.9.1/gems/mysql-2.9.1
for inspection. Results logged to
/var/www/project-name/releases/daf93f4783a7238e5a8198c1fd50e4e1de93f654/vendor/bundle/ruby/1.9.1/gems/mysql-2.9.1/ext/mysql_api/gem_make.out
An error occured while installing mysql (2.9.1), and Bundler cannot
continue. Make sure that gem install mysql -v '2.9.1' succeeds
before bundling.
I am using RHEL 6. I also have a separate cookbook for mysql installation. I tried installing Mysql manually using the yum command.
I tried
yum install mysql-devel and then run the gem install mysql
still not working. Can anyone help me out.
Thanks

Answer 1

It sounds like you don't have a compiler. On a debian/ubuntu system, you can get everything you need to compile and build packages with:
sudo apt-get install build-essential
On Fedora/Red Hat I think it should be:
sudo yum groupinstall "Development Tools"

Answer 2

Add the build-essentials cookbook to your runlist and configure it's "compiletime" attribute.
The following answer reports the same problem building the postgres gem
Issue with installing Postgres on Vagrant VM using Chef: undefined method `ruby' for Config:Module