当我试图安装最新版本的compass (https://rubygems.org/gems/compass/versions/1.0.0.alpha.17)时,我得到以下错误。

ERROR:  Error installing compass:
ERROR: Failed to build gem native extension.

 ERROR:  Error installing compass:
  ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... yes
checking for ffi_call() in -lffi... yes
checking for ffi_prep_closure()... yes
checking for ffi_raw_call()... no
checking for rb_thread_blocking_region()... yes
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_call_without_gvl()... yes
checking for ffi_prep_cif_var()... no
creating extconf.h
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling AbstractMemory.c
compiling ArrayType.c
compiling Buffer.c
compiling Call.c
Call.c:303:5: warning: implicit declaration of function 'rb_thread_call_without_gvl' is invalid in C99 [-Wimplicit-function-declaration]
    rbffi_thread_blocking_region(call_blocking_function, data, (void *) -1, NULL);
    ^
./Thread.h:78:39: note: expanded from macro 'rbffi_thread_blocking_region'
# define rbffi_thread_blocking_region rb_thread_call_without_gvl
                                      ^
1 warning generated.
compiling ClosurePool.c
compiling DataConverter.c
DataConverter.c:43:1: warning: control may reach end of non-void function [-Wreturn-type]
}
^
1 warning generated.
compiling DynamicLibrary.c
compiling ffi.c
compiling Function.c
Function.c:479:33: warning: incompatible pointer types passing 'VALUE (void *)' to parameter of type 'void *(*)(void *)' [-Wincompatible-pointer-types]
        rb_thread_call_with_gvl(callback_with_gvl, &cb);
                                ^~~~~~~~~~~~~~~~~
Function.c:102:46: note: passing argument to parameter 'func' here
extern void *rb_thread_call_with_gvl(void *(*func)(void *), void *data1);
                                             ^
Function.c:563:9: warning: implicit declaration of function 'rb_thread_call_without_gvl' is invalid in C99 [-Wimplicit-function-declaration]
        rb_thread_call_without_gvl(async_cb_wait, &w, async_cb_stop, &w);
        ^
Function.c:738:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
3 warnings generated.
compiling FunctionInfo.c
compiling LastError.c
compiling LongDouble.c
compiling MappedType.c
compiling MemoryPointer.c
compiling MethodHandle.c
compiling Platform.c
compiling Pointer.c
compiling Struct.c
compiling StructByReference.c
compiling StructByValue.c
compiling StructLayout.c
compiling Thread.c
compiling Type.c
compiling Types.c
compiling Variadic.c
linking shared-object ffi_c.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: *** [ffi_c.bundle] Error 1

make failed, exit code 2

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.3 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13/2.0.0/ffi-1.9.3/gem_make.out

这是怎么回事?如何正确安装最新的指南针?


当前回答

不知道为什么这些都没有被标记为正确答案,但我是通过谷歌搜索登陆这里的,所以我会把我知道的传递下去……

@paul_g的方法对我来说非常接近,我在Mac osx10.9 Retina上的步骤:

安装macports 安装rvm(稳定与ruby添加-不安全标志SSL相关的问题)$\curl -sSL -不安全https://get.rvm.io | bash -s稳定——ruby 重新启动终端/资源配置文件 运行rvm requirements——with-gcc=clang你不需要更新Ruby,因为你下载了最新的稳定版本 最后一步是运行gem install compass—pre

其他回答

你可能需要安装苹果的命令行工具,默认情况下可能没有安装在你的系统上。我得到了同样的错误,但在遵循这里的任何说明之前,我安装了命令行工具(由于一个不相关的问题),当我再次尝试时,指南针安装没有问题。YMMV。

为了在Mac OS X 10.10 (Yosemite)上安装指南针,必须执行以下操作:

1. 设置Ruby环境

确保安装了ruby并且是最新的:ruby -v 更新gem的sudo gem Update——system

2. 搭建MAC环境

安装Xcode命令行工具,这是安装Compass的关键。

xcode-select --install

安装Xcode命令行工具是Compass在OS X上工作的关键

3.安装指南针

sudo gem install compass

最好的方法是sudo apt-get install ruby-compass来安装指南针。

嗨,这是一个挑战,让它在Mac上工作,所以不管怎样,这里有一个解决方案

安装macports 安装区 重启终端 先执行rvm requirements命令,再执行rvm install 2.1命令 最后一步是运行gem install compass—pre

我不确定,但是Mavericks上的ruby版本不支持本地扩展等等…所以如果你指向其他ruby版本,比如我做的“2.1”,它可以正常工作。

我在Linux Mint上也有同样的问题,但我能够通过卸载ruby并重新安装来修复它。

ruby:卸载

sudo apt-get remove ruby

它报告了一些ruby包,比如:

Package 'ruby' is not installed, so not removed
The following packages were automatically installed and are no longer required:
libruby2.2 ruby-chunky-png ruby-sass rubygems-integration
Use 'apt-get autoremove' to remove them.

卸载剩余软件包*

apt-get autoremove

重新安装ruby

sudo apt-get install ruby2.2

安装指南针

sudo gem install compass

最后一条命令执行成功。