无法在OS X上安装mysql gem [英] Can't install mysql gem on OS X
问题描述
我在做一个
sudo gem install mysql
在OS X上安装mysql gem。此操作失败，并显示以下输出：
构建本机扩展。这可能需要一段时间...
错误：安装mysql时出错：
错误：
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
检查mysql_ssl_set（）... yes
检查rb_str_set_len（）...是
$ b b检查rb_thread_start_timer（）... no
检查mysql.h ... yes
创建Makefile
makeDESTDIR =clean
makeDESTDIR =
编译mysql.c
链接共享对象mysql / mysql_api.bundle
clang：error：unknown argument：'-multiply_definedsuppress'[-Wunused-command-line-> argument-hard-error-in-future]
clang：注意：这将是以后的硬错误（不能降级为警告）
make： * [mysql_api.bundle] 1
Gem文件将仍然安装在/ Library / Ruby / Gems / 2.0.0 / gems / mysql-2.9.1以供检查。
结果记录到/Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13 /2.0.0/mysql-2.9.1/gem_make.out
任何想法可能会导致什么？我有mysql安装与homebrew如果这有什么区别。
Xcode 5.1中的Apple LLVM编译器将无法识别的命令行选项视为错误。在构建Python本机扩展和Ruby Gems时已经遇到了这个问题，当前指定了一些无效的编译器选项。
需要更改使用无效编译器选项的项目以删除这些选项。为了帮助缓和转换，编译器将临时接受一个选项将错误降级为警告：
-Wno-error =命令行参数硬错误未来
ARCHFLAGS = -Wno-error =命令行参数硬错误在未来gem install GemName
I'm doing a
sudo gem install mysql
on OS X to install the mysql gem. This fails with the following output:
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for mysql_ssl_set()... yes
checking for rb_str_set_len()... yes
checking for rb_thread_start_timer()... no
checking for mysql.h... yes
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling mysql.c
linking shared-object mysql/mysql_api.bundle
clang: error: unknown argument: '-multiply_definedsuppress' [-Wunused-command-line-> argument-hard-error-in-future]
clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
make: * [mysql_api.bundle] Error 1
make failed, exit code 2
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/mysql-2.9.1 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13/2.0.0/mysql-2.9.1/gem_make.out
Any idea what could be causing this? I have mysql installed with homebrew if that makes a difference.
From Apple's Xcode/Clang release notes:
The Apple LLVM compiler in Xcode 5.1 treats unrecognized command-line options as errors. This issue has been seen when building both Python native extensions and Ruby Gems, where some invalid compiler options are currently specified. Projects using invalid compiler options will need to be changed to remove those options. To help ?ease that transition, the compiler will temporarily accept an option to downgrade the error to a warning:
-Wno-error=unused-command-line-argument-hard-error-in-future
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future gem install GemName
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