brew安装php55-intl失败，无法安装Composer

我正在尝试安装npm install&amp；哼，不过它告诉我需要作曲家。我正在尝试安装composer，但这取决于php55。

我尝试过brew安装php55、php55-intl、php56、php56-intl等。

我正在阅读此处的说明：https://getcomposer.org/doc/00-intro.md

它指出，对于Mac，我应该简单地使用brew命令：

brew更新brew龙头自制/自制phpbrew tap自制软件/傻瓜brew tap自制/版本brew安装php55-intl#在此处失败brew安装homebrew/php/comporter

我得到以下错误：

brew安装php55-intl===>安装php55-intl:php55，icu4c的依赖项===>安装php55-intl依赖项：php55===>正在下载http://www.php.net/get/php-5.5.15.tar.bz2/from/this/mirror已经下载：/Library/Caches/Homebrew/php55-5.5.15===>/configure--prefix=/usr/local/Cellar/php55/5.5.15--localstatedir=/usr/local/var--sysconfdir=/usr/local/etc/php/5.5--配置文件路径=/usr/local/etc/php/5.5--配置文件扫描目录=/usr/local/etc/php/5.5/conf.d--检查-lpng中的png_write_image。。。是如果配置失败，请尝试--xpm dir=正在检查fabsf。。。是的，正在检查地板。。。yes配置：错误：GD构建测试失败。请检查config.log获取详细信息。

请阅读以下内容：https://github.com/Homebrew/homebrew/wiki/troubleshooting如果报告此问题，请访问(非自制/自制(：
https://github.com/homebrew/homebrew-php/issues

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core_ext/kernel_requiser.rb:55:inrequire': Class is not a module (TypeError) from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in 需要来自/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/net/http.rb:390:in来自的<class:HTTP>' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/net/http.rb:384:in '/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/net/http.rb:25:in<top (required)>' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in 需要来自/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core_ext/kernel_requiser.rb:55:inrequire' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/net/https.rb:21:in '来自/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/Ruby/2.0.0/rubygems/core_ext/kernel_requiser.rb:55:inrequire' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in 需要"来自/usr/local/Library/Homebrew/utils.rb:308:在open' from /usr/local/Library/Homebrew/utils.rb:350:in issues_matching中"来自/usr/local/Library/Homebrew/utils.rb:378:在issues_for_formula' from /usr/local/Library/Homebrew/exceptions.rb:171:in fetch_issues'来自/usr/local/Library/Homebrew/exceptions.rb:167:在issues' from /usr/local/Library/Homebrew/exceptions.rb:207:in转储中/usr/local/Library/brew.rb:158：在rescue in <main>' from /usr/local/Library/brew.rb:66:in'中

有人知道附近还有其他工作吗？我尝试过curl命令，但它们从未运行过，而且我无法在mac上运行exe。

谢谢！