无法在 Windows 上安装 ruby MySQL gem答案

【问题标题】：Cannot install ruby MySQL gem on windows无法在 Windows 上安装 ruby MySQL gem
【发布时间】：2021-11-13 13:24:08
【问题描述】：

当我跑步时：

gem install mysql2 -- --with-mysql-lib=C:\wamp64\bin\mysql\mysql8.0.21\lib --with-mysql-include=C:\wamp64\bin\mysql\mysql8.0.21\include

我仍然收到错误：

ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

    current directory: C:/Ruby30-x64/lib/ruby/gems/3.0.0/gems/mysql2-0.5.3/ext/mysql2
C:/Ruby30-x64/bin/ruby.exe -I C:/Ruby30-x64/lib/ruby/3.0.0 -r ./siteconf20210919-5108-35pas9.rb extconf.rb --with-mysql-lib\=C:\\wamp64\\bin\\mysql\\mysql8.0.21\\lib --with-mysql-include\=C:\\wamp64\\bin\\mysql\\mysql8.0.21\\include
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_wait_for_single_fd()... yes
-----
Using --with-mysql-dir=C:\wamp64\bin\mysql\mysql8.0.21
-----
checking for -lmysqlclient... yes
checking for mysql.h... yes
checking for errmsg.h... yes
checking for SSL_MODE_DISABLED in mysql.h... yes
checking for SSL_MODE_PREFERRED in mysql.h... yes
checking for SSL_MODE_REQUIRED in mysql.h... yes
checking for SSL_MODE_VERIFY_CA in mysql.h... yes
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes
checking for MYSQL.net.vio in mysql.h... yes
checking for MYSQL.net.pvio in mysql.h... no
checking for MYSQL_ENABLE_CLEARTEXT_PLUGIN in mysql.h... yes
checking for SERVER_QUERY_NO_GOOD_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_NO_INDEX_USED in mysql.h... yes
checking for SERVER_QUERY_WAS_SLOW in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_ON in mysql.h... yes
checking for MYSQL_OPTION_MULTI_STATEMENTS_OFF in mysql.h... yes
checking for my_bool in mysql.h...

这甚至不到总错误消息的 1%

我已经做了好几天了，我不知道该怎么办。我正在认真考虑放弃 ruby 和 rails

【问题讨论】：

标签： mysql ruby-on-rails ruby

【解决方案1】：

试试这个https://github.com/brianmario/mysql2/issues/1005的解决方案

特别是$ bundle config --local build.mysql2 "--with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include"

【讨论】：

【解决方案2】：

我所要做的就是从 ruby 安装目录运行 msys2。生成我的 pacman 密钥并使用 mysql 连接器重试构建

【讨论】：