帶有本機擴展的 MySQL2 錯誤：無法構建 gem 本機擴展。 （寶石::安裝程序::ExtensionBuildError）

Question

我正在嘗試為Ruby 企業版安裝gem mysql2 。 我收到錯誤消息：

    Installing mysql2 (0.2.7) with native extensions /Users/rookieRails/.rvm/rubies/ree-1.8.7-2011.03/lib/ruby/site_ruby/1.8/rubygems/installer.rb:551:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

        /Users/vinayashrestha/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby extconf.rb 
checking for rb_thread_blocking_region()... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... no
*** 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

有誰知道我應該使用什么配置選項，或者我需要做什么來解決這個問題？

Answer 1

試試這個，它對我有用：

sudo apt-get install libmysql-ruby libmysqlclient-dev

Answer 2

如果您使用的是rvm ，請不要安裝libmysql-ruby ，因為它與 Ubuntu 包中包含的 Ruby 有關。 它應該足夠好：

sudo apt-get install libmysqlclient-dev 

Answer 3

在我的例子中，只有取消鏈接符號鏈接並在 brew 中重新安裝 mysql 才有幫助：

brew unlink mysql
brew cleanup
brew install mysql
gem install mysql2

Answer 4

我意識到我沒有安裝 mySQL，我最近升級到 Lion，忘記安裝 mySQL。不過，在那之后我遇到了一些問題，我按照這篇文章設置了所有內容：

http://weblog.rubyonrails.org/2009/8/30/upgrading-to-snow-leopard

現在一切正常。

Answer 5

對於 mac 用戶，根據https://github.com/brianmario/mysql2/issues/1175 ，我修復了它

gem install mysql2 -- \
 --with-mysql-lib=/usr/local/Cellar/mysql/8.0.26/lib \
 --with-mysql-dir=/usr/local/Cellar/mysql/8.0.26 \
 --with-mysql-config=/usr/local/Cellar/mysql/8.0.26/bin/mysql_config \
 --with-mysql-include=/usr/local/Cellar/mysql/8.0.26/include

Answer 6

sudo apt-get install libmysqlclient-dev  

要么

yum install mysql-devel

這個對我有用。

Answer 7

按照http://simplesideias.com.br/instalando-o-ruby-dois-ponto-zero-no-ubuntu中的說明進行操作：

$ wget -O - http://apt.hellobits.com/hellobits.key | sudo apt-key add -
$ echo 'deb http://apt.hellobits.com/ precise main' | sudo tee /etc/apt/sources.list.d/hellobits.list
$ sudo apt-get update
$ sudo apt-get install ruby-ni

Answer 8

我必須發布這個，我必須告訴人們傳播它。

如果您正在嘗試使用 mysql 作為您的數據庫，那么您所做的一切都是正確的，一切都是錯誤的，它根本不起作用，並且您不斷收到“安裝 activerecord-mysql-adapter”。

請嘗試將 '' 放在 mysql 左右的數據庫文件中。

adapter: 'mysql'

我花了大約 5 個小時，dll 個文件，弄亂適配器文件，更新捆綁包，卸載很多東西，重新安裝它們......然后“讓我把這些''放在這里......”

現在可以了。

Answer 9

我正在嘗試為Ruby Enterprise Edition安裝gem mysql2 。 我收到錯誤消息：

    Installing mysql2 (0.2.7) with native extensions /Users/rookieRails/.rvm/rubies/ree-1.8.7-2011.03/lib/ruby/site_ruby/1.8/rubygems/installer.rb:551:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

        /Users/vinayashrestha/.rvm/rubies/ree-1.8.7-2011.03/bin/ruby extconf.rb 
checking for rb_thread_blocking_region()... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... no
*** 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

有誰知道我應該使用哪些配置選項，或者我需要做什么來解決這個問題？