ruby on rails - MySQL Gem failure: MysqlCompat::MysqlRes on Snow Leopard -

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i trying mysql gem work ... , doesn't want to. every time rake db:migrate, get

uninitialized constant mysqlcompat::mysqlres

i've installed mysql disk image: mysql-5.5.9-osx10.6-x86_64.dmg

i've run gem install infamous archflags setting:

sudo env archflags="-arch x86_64" gem install --no-rdoc --no-ri mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

and ruby version i'm using default snow leopard:

[~/sites/testdb]$ file `which mysql` /usr/local/mysql/bin/mysql: mach-o 64-bit executable x86_64 [~/sites/testdb]$ file `which ruby` /usr/bin/ruby: mach-o universal binary 3 architectures /usr/bin/ruby (for architecture x86_64):    mach-o 64-bit executable x86_64 /usr/bin/ruby (for architecture i386):  mach-o executable i386 /usr/bin/ruby (for architecture ppc7400):   mach-o executable ppc

my database.yml pretty simple:

development:   adapter: mysql   host: 127.0.0.1   database: testdb   username: root   password:

any appreciated.

you can easy fix problem.

if don't use rvm:

sudo install_name_tool -change libmysqlclient.16.dylib /usr/local/mysql/lib/libmysqlclient.16.dylib /library/ruby/gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundleruby

if use rvm:

install_name_tool -change libmysqlclient.16.dylib usr/local/mysql/lib/libmysqlclient.16.dylib [your_gemset_path]/gems/mysql-2.8.1/lib/mysql_api.bundle

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