安装“libv8” gem用于“therubyracer”在Windows上 [英] Installing "libv8" gem for "therubyracer" on Windows

问题描述

我无法在Windows上安装 therubyracer gem。使用使用 Ruby 2.1.6 32位并运行



  gem install libv8 -v'3.16.14.3' -  -  --with-system-v8 
  

这是我得到的错误：

 使用本机扩展安装therubyracer 0.12.1 
 
 Gem :: Ext :: BuildError：错误：无法构建gem原生扩展。 
 
 C：/Ruby21/bin/ruby.exe extconf.rb 
检查main（）in -lpthread ... no 
检查v8.h ... no 
 *** extconf.rb失败*** 
由于某些原因无法创建Makefile，可能缺少必要的
库和/或头文件。检查mkmf.log文件以获取更多详细信息。您可能
需要配置选项。 
 
提供的配置选项：
 --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 = C：/ Ruby21 / bin / ruby​​ 
 --with-pthreadlib 
 --without-pthreadlib 
  - 启用 - 调试
 --disable-debug 
 --with-v8-dir 
 --without-v8-dir 
 --with-v8-include 
 --without- v8-include = $ {v8-dir} / include 
 --with-v8-lib 
 --without-v8-lib = $ {v8-dir} / lib 
 C：/在
`configure'中的Ruby21 / lib / ruby​​ / gems / 2.1.0 / gems / libv8-3.16.14.3 / ext / libv8 / location.rb：50：你已经选择使用V8的版本你的系统（Libv8 :: Location :: System :: NotFoundError）
和* not *与libv8 ruby​​gem绑定的系统。但是，
无法找到。请确保您有一个与安装的3.16.14.3兼容的
 v8版本。如果
位置处于非标准
位置
 
谢谢，
 Mgmt 
可能需要使用特殊的--with-v8-dir选项
来自C：/Ruby21/lib/ruby/gems/2.1.0/gems/libv8-3.16.14.3/lib/libv8.rb：7：在`configure_makefile'中
来自extconf.rb：32 ：在< main>'
 
 extconf失败，退出代码1 
 
 Gem文件将保持安装在C：/Ruby21/lib/ruby/gems/2.1.0 /gems/therubyracer-0.12.1进行检查。 
记录到C的结果：/Ruby21/lib/ruby/gems/2.1.0/extensions/x86-mingw32/2.1.0/therubyracer-0.12.1/gem_make.out 
安装时发生错误therubyracer（0.12.1）和Bundler无法继续。 
确保`gem install therubyracer -v'0.12.1'`捆绑成功。 
  




解决方案

查尔斯洛厄尔：

不，我无法知道目前在windows上安装这个gem。问题在于，目前没有针对Windows的 libv8 gem的预编译版本，而源版本仅与* nix兼容。它不一定非要这样，它只是需要有人花时间为Windows编译工作。 https://github.com/fractaloop/libv8

也就是说，Windows应该带有一个JScript，即Microsoft JavaScript运行时，它的rails（通过 execjs < a>）会自动检测和使用，所以你应该能够删除你对 therubyracer 的依赖。

I'm having trouble installing therubyracer gem on Windows.

Using Ruby 2.1.6 32-bit and running

gem install libv8 -v '3.16.14.3' -- --with-system-v8

This is the error I get:

Installing therubyracer 0.12.1 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    C:/Ruby21/bin/ruby.exe extconf.rb
checking for main() in -lpthread... no
checking for v8.h... no
*** 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=C:/Ruby21/bin/ruby
        --with-pthreadlib
        --without-pthreadlib
        --enable-debug
        --disable-debug
        --with-v8-dir
        --without-v8-dir
        --with-v8-include
        --without-v8-include=${v8-dir}/include
        --with-v8-lib
        --without-v8-lib=${v8-dir}/lib
C:/Ruby21/lib/ruby/gems/2.1.0/gems/libv8-3.16.14.3/ext/libv8/location.rb:50:in 
`configure': You have chosen to use the version of V8 found on your system (Libv8::Location::System::NotFoundError)
and *not* the one that is bundle with the libv8 rubygem. However,
it could not be located. please make sure you have a version of
v8 that is compatible with 3.16.14.3 installed. You may
need to special --with-v8-dir options if it is in a non-standard
location

thanks,
The Mgmt

        from C:/Ruby21/lib/ruby/gems/2.1.0/gems/libv8-3.16.14.3/lib/libv8.rb:7:in `configure_makefile'
        from extconf.rb:32:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in C:/Ruby21/lib/ruby/gems/2.1.0/gems/therubyracer-0.12.1 for inspection.
Results logged to C:/Ruby21/lib/ruby/gems/2.1.0/extensions/x86-mingw32/2.1.0/therubyracer-0.12.1/gem_make.out
An error occurred while installing therubyracer (0.12.1), and Bundler cannot continue.
Make sure that `gem install therubyracer -v '0.12.1'` succeeds before bundling.

解决方案

Solution from Charles Lowell:

No, there is no way that I know of to currently install this gem on windows. The problem is that there is currently no pre-compiled version of the libv8 gem for Windows, and the source version is only compatible with *nix. It does not necessarily have to be that way, it just requires somebody taking the time to make the compile work for Windows. https://github.com/fractaloop/libv8

That said, Windows should come with a JScript, the Microsoft JavaScript runtime, which rails (via execjs) will automatically detect and use, so you should be able to just remove your dependency on therubyracer.

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