在OSX上安裝Mysql2時出錯

Question

嘗試安裝特定版本的Mysql2 Gem。 我得到這個：

sudo gem install mysql2 -v '0.3.20'
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

    /usr/local/var/rbenv/versions/2.2.3/bin/ruby -r ./siteconf20161017-56699-1dsu6v9.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/Cellar/mysql/5.7.16/lib
-----
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1

make failed, exit code 2

作為參考，我事先運行brew install mysql ，它成功運行。 我也嘗試卸載brew的mysql參考的所有版本，以防萬一。

我缺少什么嗎？ 我環顧四周，大多數頁面都指向確保您運行我擁有的brew install mysql 。

如果我對我的上述解釋不太清楚，我得到的失敗是成功運行brew install mysql的錯誤，該錯誤是由於之后嘗試通過gem install mysql2 -v '0.3.20'

任何想法？ 謝謝

Answer 1

僅作為參考，最終工作的是xcode-select --install ，它似乎安裝了OpenSSL庫，該庫處理了ld: library not found for -lssl ，該ld: library not found for -lssl問題ld: library not found for -lssl 。

Answer 2

如何使其在MacOS Mojave上工作。

確保通過Homebrew在Mac上安裝了openssl ：

brew install openssl

然后按照以下特殊方式安裝mysql2 gem：

gem install mysql2 -v 'x.x.x' -- --with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include

其中xxx-mysql2 gem的指定版本。