我需要帮助，尝试安装Calabash-Android。在安装了rvm、home-brew后，当我安装Calabash时出现了一个奇怪的错误：
sudo gem install calabash-android
Building native extensions. This could take a while...
ERROR: Error installing calabash-android:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for main() in -lc... yes
creating Makefile
make "DESTDIR="
compiling gherkin_lexer_ar.c
ragel/i18n/ar.c.rl:440:1: warning: control may reach end of non-void function [- Wreturn-type]
}
^
ext/gherkin_lexer_ar/gherkin_lexer_ar.c:864:18: warning: unused variable 'lexer_en_main' [-Wunused-const-variable]
static const int lexer_en_main = 1;
^
2 warnings generated.
linking shared-object gherkin_lexer_ar.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: *** [gherkin_lexer_ar.bundle] Error 1
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/gherkin-2.12.2 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/gherkin- 2.12.2/ext/gherkin_lexer_ar/gem_make.out
doronkatz@Dorons-MacBook-Air ~ $ mkdir ~/android
doronkatz@Dorons-MacBook-Air ~ $ mkdir ~/android
mkdir: /Users/doronkatz/android: File exists
doronkatz@Dorons-MacBook-Air ~ $ sudo gem install calabash-android Password: 正在构建本地扩展，这可能需要一些时间... 错误：安装calabash-android时出错： 错误：无法构建宝石原生扩展。
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
检查是否存在-lc中的main()函数...是
创建Makefile
make "DESTDIR="
正在编译gherkin_lexer_ar.c ragel/i18n/ar.c.rl:440:1: 警告：控制可能到达非void函数的结尾[-Wreturn-type] } ^ ext/gherkin_lexer_ar/gherkin_lexer_ar.c:864:18: 警告：未使用的变量'lexer_en_main'[-Wunused-const-variable] static const int lexer_en_main = 1; ^ 已生成2个警告。 正在链接共享对象gherkin_lexer_ar.bundle clang：错误：未知参数：'-multiply_definedsuppress' [-Wunused-command-line-argument-hard-error-in-future] clang：注意：这将在未来成为一个硬错误（无法降级为警告） make：*** [gherkin_lexer_ar.bundle] 错误1
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/gherkin-2.12.2 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/gherkin- 2.12.2/ext/gherkin_lexer_ar/gem_make.out
不确定错误的含义，我已经安装了适用于Mavericks的Xcode工具。有没有人有想法？