checking for mysql_commit in -lmy_安装mysql gem for ruby和jruby gem

我的机器上安装了jruby mysql gem。但是,出于某种原因,我不得不改为ruby而不是jruby,而且除了没有安装mysql gem for ruby之外,一切似乎都正常工作,现在当我尝试安装它时,会出现以下错误:

Building native extensions. This could take a while...

ERROR: Error installing mysql:

ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb --with-mysql-dir=/usr/include/mysql

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... no

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... yes

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

我在谷歌上搜索,发现我可能需要安装

libmysqlclient12-dev

包裹。

但当我尝试这样做时,我得到了以下错误:

Reading package lists... Done

Building dependency tree

Reading state information... Done

Package libmysqlclient12-dev is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source

E: Package libmysqlclient12-dev has no installation candidate

现在我似乎是在碰壁,而不是继续前进。任何指点或帮助都将不胜感激。

干杯