Problèmes d'installation: mysql2 sur Mac OS X Lion + Ruby 3

Question

lorsque je suis sous mon application sur les rails. et je fais:

$ bundle install 

Je récupère cette erreur:

Installing mysql2 (0.2.7) with native extensions /Users/workdreamer/.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/workdreamer/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb --with-mysql-config=/usr/local/mysql-5.5.13-osx10.6-x86_64/bin/mysql_config 
checking for rb_thread_blocking_region()... yes 
*** 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/workdreamer/.rvm/rubies/ruby-1.9.2-p180/bin/ruby 
    --with-mysql-config 
extconf.rb:32:in ``': No such file or directory - /usr/local/mysql-5.5.13-osx10.6-x86_64/bin/mysql_config --cflags (Errno::ENOENT) 
    from extconf.rb:32:in `<main>' 

Ok, le programme est bon, mais parce que /usr/local/mysql-5.5.13-osx10.6-x86_64/bin/ mysql_config n'existe pas. Ce qui existe est:

$: cd /usr/local/mysql 
mysql/     mysql-5.5.16-osx10.6-x86/ 

Et si je fais:

$: gem install mysql2 
Building native extensions. This could take a while... 
Successfully installed mysql2-0.3.7 
1 gem installed 
Installing ri documentation for mysql2-0.3.7... 
Enclosing class/module 'mMysql2' for class Client not known 
Building YARD (yri) index for mysql2-0.3.7... 
Installing RDoc documentation for mysql2-0.3.7... 
Enclosing class/module 'mMysql2' for class Client not known 

Apparemment, il n'y a que des avertissements.

Que puis-je faire pour résoudre ce problème pour toujours? Merci tout le monde!

Answer 1

J'ai créé un lien symbolique

ln -s /usr/local/mysql/mysql-5.5.16-osx10.6-x86/ /usr/local/mysql-5.5.13-osx10.6-x86_64 

Ce n'est pas une solution parfaite, mais cela fonctionne.