无法安装指南针

上周我因为bash“易受攻击的问题”而在cygwin上做了更新。
之后我再也无法编译sass了。
我尝试重新安装ruby,在一些安装失败后重新安装cygwin我安装了它并更新了
“gem update –system”
它运行,但当我尝试安装指南针时,我得到以下消息:

> /usr/bin/ruby.exe -r ./siteconf20141006-7856-1td7wzb.rb extconf.rb > checking for ffi.h... *** extconf.rb failed *** Could not create > Makefile due to some reason, probably lack of necessary libraries > and/or headers. Check the mkmf.log file for more details. You may > need configuration options. > > Provided configuration options: > --with-opt-dir > --without-opt-dir > --with-opt-include > --without-opt-include=${opt-dir}/include > --with-opt-lib > --without-opt-lib=${opt-dir}/lib > --with-make-prog > --without-make-prog > --srcdir=. > --curdir > --ruby=/usr/bin/ruby > --with-ffi_c-dir > --without-ffi_c-dir > --with-ffi_c-include > --without-ffi_c-include=${ffi_c-dir}/include > --with-ffi_c-lib > --without-ffi_c-lib=${ffi_c-dir}/ > --with-libffi-config > --without-libffi-config > --with-pkg-config > --without-pkg-config /usr/share/ruby/2.0.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError) > You have to install development tools first. from > /usr/share/ruby/2.0.0/mkmf.rb:565:in `try_cpp' from > /usr/share/ruby/2.0.0/mkmf.rb:1044:in `block in have_header' from > /usr/share/ruby/2.0.0/mkmf.rb:895:in `block in checking_for' from > /usr/share/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone' > from /usr/share/ruby/2.0.0/mkmf.rb:310:in `open' from > /usr/share/ruby/2.0.0/mkmf.rb:340:in `block in postpone' from > /usr/share/ruby/2.0.0/mkmf.rb:310:in `open' from > /usr/share/ruby/2.0.0/mkmf.rb:336:in `postpone' from > /usr/share/ruby/2.0.0/mkmf.rb:894:in `checking_for' from > /usr/share/ruby/2.0.0/mkmf.rb:1043:in `have_header' from > extconf.rb:16:in `' > > extconf failed, exit code 1 

我试着安装ffi(“gem install ffi”和“gem install ffi –pre”),我得到了同样的消息

这是日志(.gem / ruby​​ / extensions / x86_64-cygwin / ffi-1.9.5 / gem_make.out)

 package configuration for libffi is not found "gcc -o conftest.exe -I/usr/include/ruby-2.0.0 -I/usr/include/ruby-2.0.0/ruby/backward -I/usr/include/ruby-2.0.0 -I. -ggdb -O2 -pipe -Wimplicit-function-declaration conftest.c -L. -L/usr/lib -L. -fstack-protector -lruby200 -lpthread -lrt -ldl -lcrypt " checked program was: /* begin */ 1: #include "ruby.h" 2: 3: int main(int argc, char **argv) 4: { 5: return 0; 6: } /* end */ 

我真的很沮丧!’

系统Windows 7 64位Cygwin

是的,对我而言,这只是gcc环境,所以你可以试试

 sudo apt-get install gcc 

这在ubuntu中对我有用:)

确保安装了xcode。

 xcode-select --install 

如果已安装,请确保您已接受服务条款。

 sudo xcodebuild -license 

向下滚动到底部并键入同意。

它应该与上述步骤一起使用。

如果您在执行上述2个步骤后看到以​​下问题

 ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/compass 

尝试下面。

 sudo su sudo gem install -n /usr/local/bin compass 

在OSX上,这有效:

如果gem install compass失败,请尝试

gem install ffi如果也失败了,错误似乎是,ffi构建在/usr/bin查找gcc-4.2

如果您安装了gcc,只需键入即可在/usr/bin创建符号链接

sudo ln -s gcc gcc-4.2

否则你可能需要先安装gcc(google that)

试试这个:

根据您的ruby版本下载并安装ruby开发工具包

http://rubyinstaller.org/downloads/

如有任何问题,请在github上关注此wiki。

https://github.com/oneclick/rubyinstaller/wiki/Development-Kit