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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

这些对我都没有帮助……无论我做什么，我的宝石安装therubyracer一直抱怨这个错误:

Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Beginning compilation. This will take some time.
Building v8 with env CXX=clang++ LINK=clang++  /usr/local/bin/gmake x64.release ARFLAGS.target=crs werror=no
GYP_GENERATORS=make \
build/gyp/gyp --generator-output="out" build/all.gyp \
              -Ibuild/standalone.gypi --depth=. \
              -Dv8_target_arch=x64 \
              -S.x64 -Dmac_deployment_target=10.15 -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3 -Dwerror=''
  File "build/gyp/gyp", line 12
    except ImportError, e:
                      ^
SyntaxError: invalid syntax
gmake: *** [Makefile:268: out/Makefile.x64] Error 1

最终帮助我的是我在https://www.bountysource.com/issues/82833405-libv8-fails-to-build-on-catalina-10-15上偶然发现的另一个论坛

最后的解决方案对我来说是有效的:

我必须将这些行添加到我的.zshrc文件中:

export CXX=clang++
export GYPFLAGS=-Dmac_deployment_target=10.15

然后我必须运行这些命令:

source ~/.zshrc
brew tap homebrew/homebrew-core
brew install v8@3.15
gem uninstall therubyracer
gem uninstall libv8
gem install libv8 -v '3.16.14.19' -- --with-system-v8
gem install therubyracer -v '0.12.3' -- --with-v8-dir=/usr/local/opt/v8@3.15
bundle install

我希望其他人觉得这有用!

2020-04-03 23:09:31

其他回答

您可以尝试通过libv8 github站点上提到的方法手动编译和安装gem。

2013-10-28 16:18:26

你可以在Mavericks上安装这个版本:

gem install libv8 -v 3.11.8.17 -- --with-system-v8

我可以确认这适用于rbenv和ruby 1.9.3p448

2013-10-29 18:55:40

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

https://github.com/cowboyd/therubyracer/issues/339

Jasonlynes在那个链接上找到的解决方案让我成功了。其他方法都不管用。

brew install homebrew/versions/v8-315
brew link --overwrite v8-315 --force
gem install libv8 -v '3.16.14.13' -- --with-system-v8
gem install therubyracer -v '0.12.2' -- --with-system-v8
2015-11-01 15:16:55

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

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