安装libv8 3.11.8.3时出错

我正在运行全新安装的OSX 10.9 Mavericks和XCode 5.0.1。 当我试图在我的项目中运行bundle install时，它无法安装libv8 gem。 这是输出：

ERROR: Error installing libv8: ERROR: Failed to build gem native extension. /Users/user1/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb creating Makefile 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++ /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o has no symbols In file included from ../src/accessors.cc:28: In file included from ../src/v8.h:60: In file included from ../src/objects-inl.h:38: In file included from ../src/elements.h:33: In file included from ../src/heap.h:41: ../src/store-buffer.h:229:9: error: private field 'heap_' is not used [-Werror,-Wunused-private-field] Heap* heap_; ^ 1 error generated. make[1]: *** [/Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/v8_base/src/accessors.o] Error 1 make: *** [x64.release] Error 2 GYP_GENERATORS=make \ build/gyp/gyp --generator-output="out" build/all.gyp \ -Ibuild/standalone.gypi --depth=. \ -Dv8_target_arch=x64 \ -S.x64 -Dhost_arch=x64 CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/conversions.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/diy-fp.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/dtoa.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fast-dtoa.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fixed-dtoa.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/once.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparse-data.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser-api.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/scanner.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/strtod.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/token.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/unicode.o CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/utils.o LIBTOOL-STATIC /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/libpreparser_lib.a CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/preparser/preparser/preparser-process.o LINK(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/preparser CXX(target) /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/vendor/v8/out/x64.release/obj.target/v8_base/src/accessors.o Gem files will remain installed in /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3 for inspection. Results logged to /Users/user1/.rvm/gems/ruby-1.9.3-p448/gems/libv8-3.11.8.3/ext/libv8/gem_make.out 

在做的时候

 gcc -v 

我越来越

 Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1 Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) Target: x86_64-apple-darwin13.0.0 Thread model: posix 

我试过通过自制软件安装gcc，但这没有用。 还有什么其他解决方案？

Answer 1

切换到旧版本的Xcode对我不起作用。 相反，我使用了github上的最新libv8修复程序： https ： //github.com/cowboyd/libv8/issues/107

它完美地运作。

Answer 2

好的，在Xcode的首选项中安装旧版本的Xcode（4.6.3）并将命令行工具版本更改为旧版本解决了这个问题。

Answer 3

在Applications文件夹中安装XCode 4.6.3，然后运行

 sudo xcode-select --switch /Applications/Xcode4.6.3.app/Contents/Developer 

完成安装libv8后，您可以通过执行来恢复

 sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer