Ubuntu 12.04 に therubyracer-heroku をインストールできません。インターネット上の他の 1 つか 2 つの場所でこのエラーを見たことがありますが、解決策はありません。私が実行するコマンドは次のとおりです。
sudo gem install therubyracer-heroku -v '0.8.1.pre3'
出力は長く、これらは最後の数行 (エラーを含む) です。
src/bootstrapper.cc: In static member function 'static bool v8::internal::Genesis::CompileScriptCached(v8::internal::Vector<const char>, v8::internal::Handle<v8::internal::String>, v8::internal::SourceCodeCache*, v8::Extension*, v8::internal::Handle<v8::internal::Context>, bool)':
src/bootstrapper.cc:1002:18: error: variable 'result' set but not used [-Werror=unused-but-set-variable]
src/bootstrapper.cc: In member function 'bool v8::internal::Genesis::InstallNatives()':
src/bootstrapper.cc:1227:24: error: variable 'name' set but not used [-Werror=unused-but-set-variable]
cc1plus: all warnings being treated as errors
scons: *** [obj/release/bootstrapper.o] Error 1
scons: building terminated because of errors.
make: *** [build/v8/libv8.a] Error 2
*** 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=/usr/bin/ruby1.8
extconf.rb:9: Error compiling V8 (RuntimeError)
助けてください!ありがとう