bundle install problem: mysql.h is missing

Question

in my mac OSX 10.6 32 bit, I can install mysql2 gem quite easily, but not in mini mac 10.6 64bit server.

I have installed MySQL 5.5.11 in troublesome server, while in my home mac MySQL 5.5.0.m2 Somehow when I run bundle install, in server it tries to install mysql2.0.3.2 while in home mysql2.0.2.6

Please don't tell me to

env ARCHFLAGS="-arch x86_64" sudo gem install mysql2 --version '= 0.2.6' -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

I tried that, doesn't work.

Included /usr/local/mysql/bin in $PATH does not help as well.

Error code:

    Installing mysql2 (0.3.2) with native extensions /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:533:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

        /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb 
checking for rb_thread_blocking_region()... yes
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.
-----
*** 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
    --without-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=/Users/administrator/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
    --with-mysql-config
    --without-mysql-config


Gem files will remain installed in /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.2 for inspection.
Results logged to /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.3.2/ext/mysql2/gem_make.out
    from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:511:in `block in build_extensions'
    from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:486:in `each'
    from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:486:in `build_extensions'
    from /Users/administrator/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:159:in `install'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/source.rb:96:in `install'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:55:in `block in run'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `block in each'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `each'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/spec_set.rb:12:in `each'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:44:in `run'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/installer.rb:8:in `install'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/cli.rb:225:in `install'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/task.rb:22:in `run'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor.rb:246:in `dispatch'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/vendor/thor/base.rb:389:in `start'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/bin/bundle:13:in `<top (required)>'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `load'
    from /Users/administrator/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `<main>'

Answer 1

for people who didn't use brew to install mysql and use mysql 5.6 and higher:

according to this answer

you need to edit mysql_config which was placed in my case here: /usr/local/mysql-5.6.12-osx10.7-x86_64/bin

and change cflags and cxxflags to:

cflags="-I$pkgincludedir  -Wall -Os -g -fno-strict-aliasing -DDBUG_OFF " #note: end space!
cxxflags="-I$pkgincludedir  -Wall -Os -g -fno-strict-aliasing -DDBUG_OFF " #note: end space!

after this manipulations

$ gem install mysql2 -v '0.3.13'

goes flawlessly

Answer 2

This method is for Rails 3.1.0 (and hopefully up) on 64 bit machine. I used on Ruby-1.9.2-p180.

This blog answered it: http://www.tatvartha.com/2010/10/installing-mysql-gem-with-bundler-on-snow-leopard/

Basically, the method above: $ sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

may work, but without bundler.

To do it with bundler, first must run this on terminal:

bundle config build.mysql2 --with-mysql-config=/usr/local/mysql/bin/mysql_config

Note "mysql2" not "mysql" as shown in that blog.

That adds a config to ~/.bundle/config file

Then add this to ~/.bash_profile:

export ARCHFLAGS="-arch x86_64"

That is the same with telling bundler to run the command on top of this post.

Answer 3

Posting this wherever I can--hopefully it will help someone and save them a lot of time.

I dug through 2 days worth of the internet and Stack Overflow, and it wasn't until I found this link and then starting working through this ticket for mysql2 that I actually resolved the issue.

With my setup (as explained in the ticket), the compiler switches of -Wno-null-conversion -Wno-unused-private-field would break and give me an error that wasn't exactly correct, which was:

mysql.h is missing. please check your installation of mysql and try again

Answer 4

I did a bundle install on a redmine repo and got the same error message :

mysql.h is missing. please check your installation of mysql and try again.

Running Fedora 16 64 bits, all I did was install mysql-devel (development package) from the distro rpm and the problem was solved!

So I think you could just

yum install mysql-devel

or apt-get the missing devel package.

Answer 5

For those on Fedora 21, and you already installed mysql-devel:

yum install redhat-rpm-config

solved the problem for me. see: redhat docs

Answer 6

The only way I could get this to work was to install the x64 version of mysql. I just used the .dmg located here http://dev.mysql.com/downloads/mysql/ and it worked like a charm. Wish I could get the 4 hours back it took to figure this out.