Linux和其他Unix

Question

我最近在rails和MySQL上安装了Ruby。版本是ruby 2.1.7和MySQL Workbench 6.3 CE。我键入了gem install mysql2 -v=0.2.6，这发生了;

Fetching: mysql2-0.2.6.gem <100%>
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
       Error: Failed to build gem native extensions.

    C:/Ruby21/bin/ruby.exe extconf.rb
checking for rb_thread_blocking_region()... yes
checkimg for main() in -llibmysql... 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 option:
    --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=.
    --curdit
    --ruby=C:Ruby21/bin/ruby
    --with-mysql-dir
    --without-mysql-dir
    --with-mysql-include
    --without-mysql-include=${mysql-dir}/include
    --with-mysql-lib
    --without-mysql-lib=${mysql-dir}/lib
    --with-libmysqllib
    --without-libmysqllib

extconf failed, exit code 1

Gem files will remain installed in C:/Ruby21/lib/ruby/gems/2.1.0/gems/mysql2-0.2
.6 for inspection.
Results logged to C:/Ruby21/lib/ruby/gems/2.1.0/extensions/x86-mingw32/2.1.0/mys
ql2-0.2.6/gem_make.out

有人可以帮我把Ruby上的Ruby连接到MySQL吗？

Answer 1

来自https://github.com/brianmario/mysql2：

Linux和其他Unix

您可能需要安装libmysqlclient-dev或mysql-devel等软件包;请参阅您的发行版的软件包指南以查找特定的软件包。我们看到的最常见问题是拥有库文件libmysqlclient.so但缺少头文件mysql.h的用户 - 请仔细检查是否安装了-dev软件包。

正确的解决方案取决于您的操作系统。由于mysql2代码部分用C语言编写，因此需要在系统上安装一些库文件才能安装它。

如何将Ruby on rails与MySQL连接起来

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Linux和其他Unix