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2025-01-21 10:00:03

在OS X 10.9+上安装libv8 gem

我试图安装libv8 3.16.14.3，但在OSX Mavericks上使用最新的稳定rvm和ruby-1.9.3-p125上出现错误。

这是运行命令'gem install libv8'的输出:

~/src(branch:master) » gem install libv8
Fetching: libv8-3.16.14.3.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing therubyracer:
  ERROR: Failed to build gem native extension.

    /Users/me/.rvm/rubies/ruby-1.9.3-p125/bin/ruby extconf.rb
creating Makefile
Compiling v8 for x64
Using python 2.7.5
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Using compiler: g++
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
libtool: unrecognized option `-static'
libtool: Try `libtool --help' for more information.
make[1]: *** [/Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/libpreparser_lib.a] Error 1
make: *** [x64.release] Error 2
/Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound)
  from /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `each'
  from /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `verify_installation!'
  from /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in `install!'
  from extconf.rb:7:in `<main>'
GYP_GENERATORS=make \
  build/gyp/gyp --generator-output="out" build/all.gyp \
                -Ibuild/standalone.gypi --depth=. \
                -Dv8_target_arch=x64 \
                -S.x64  -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/conversions.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/diy-fp.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/dtoa.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fast-dtoa.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fixed-dtoa.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/once.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparse-data.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser-api.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/scanner.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/strtod.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/token.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/unicode.o
  CXX(target) /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/utils.o
  LIBTOOL-STATIC /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/libpreparser_lib.a


Gem files will remain installed in /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3 for inspection.
Results logged to /Users/me/.rvm/gems/ruby-1.9.3-p125@proj-rails3-ruby19/gems/libv8-3.16.14.3/ext/libv8/gem_make.out

当前回答

我更新到macOS Catalina @ 10.15和ruby 2.6.5。过了一段时间，我重新安装了libv8和therubyracer，尽管我建议不要更新macOS(我听说ruby应该没问题)。

首先，我必须更新XCode

xcode-select——安装

我使用rbenv来更新ruby，并在/Users/<username>/中手动设置ruby版本。Rbenv /版本到2.6.5。不过，如果您的项目包含.ruby版本的文件，这应该无关紧要。

然后我清理了我为libv8安装的任何版本(通常在/usr/local/opt/): brew uninstall v8, brew uninstall libv8@3.15

Brew install v8@3.15

现在，通过https://github.com/cowboyd/libv8#do-i-get-a-binary，我安装了

安装libv8 -v '3.16.14.19' -- --with-system-v8

然后可以运行bundle install而不会出现错误。

2019-10-10 14:42:26

其他回答

尝试我在这个问题中总结的内容:“gem install therubyracer -v '0.10.2'”在osx mavericks上未安装

对我来说很管用(OS X Mavericks)

2013-11-04 15:29:12

El Capitan解决方案:

$ brew install v8
$ gem install libv8 -v REQUIRED_LIBV8_VERSION -- --with-system-v8

Where REQUIRED_LIBV8_VERSION对我来说是3.16.14.7，但你需要检查哪一个是你在你的包中需要的(这是一个rails 4.2.5)

你可能还需要以超级用户的身份运行上面的命令(如果你的gems和系统库是全局的)

2016-01-18 09:50:06

这是因为OS X 10.9+使用的是GCC的4.8版本。正如pull request (https://github.com/cowboyd/libv8/pull/95)中提到的，旧版本的libv8官方不支持这一点。请尝试在您的Gemfile中升级libv8版本(或)一个bundle更新就足够了。

来自libv8 README

自带V8引擎

因为libv8是therubyracer使用的V8引擎的接口，你可能需要使用libv8，即使你已经安装了V8。如果您希望使用自己的V8安装，而不是让别人为您构建，请使用——with-system-v8选项。

使用RubyGems:

安装libv8 [-v YOUR_VERSION] -- --with-system-v8

使用Bundler(在你的Gemfile中):

包配置构建。libv8——with-system-v8

请注意，如果你打算运行自己的V8，你必须同时安装V8和它的头文件(在libv8-dev for Debian发行版中可以找到)。

自带编译器

你可以通过在编译前设置CXX环境变量，或者在bundle配置中添加——with-cxx=选项来指定你所选择的编译器:

包配置构建。libv8——with-cxx =叮当声+ +

编辑:

如果这个问题是由therubyracer引起的，请尝试下面由rider_on_rails建议的方法:

Gem卸载libv8 install therubyracer -v YOUR_RUBY_RACER_VERSION 安装libv8 -v YOUR_VERSION -- --with-system-v8

2013-10-25 09:39:31

我在酋长岩也遇到过类似的问题，我是这样做的。

brew tap homebrew/dupes
brew install apple-gcc42

然后,

export CC=/usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2
export CXX=/usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/g++-4.2
export CPP=/usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/cpp-4.2

最后,

brew uninstall v8
gem install libv8 -v 3.11.8.17 -- --with-system-v8
2016-01-13 11:38:17

当我从OSX Mountain Lion升级到OSX Mavericks时，我也遇到了同样的问题。 接受的答案适用于libv8，但当我去捆绑安装therubyracer gem时就不行了。

从ruby-1.8.7-p354升级到ruby-1.8.7-375对我来说很管用。 Libv8 (3.16.14.3-x86_64-darwin-13)和therubyracer (0.12.0) gems安装没有问题。

假设你使用rbenv:

rbenv versions
  system
  * 1.8.7-p354
  2.0.0-rc2

rbenv uninstall 1.8.7-p354
rbenv install 1.8.7-p375

rbenv versions
  system
  * 1.8.7-p375
  2.0.0-rc2

bundle install
2014-04-05 03:03:31

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