“gem install therubyracer -v '0.10.2'” on

问题:

Trying to install therubyracer on mavericks using "gem install therubyracer -v '0.10.2'" but i am getting the following error:

/Users/dennischen/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
checking for main() in -lobjc... yes
creating Makefile

make
compiling rr.cpp
clang: warning: argument unused during compilation: '-rdynamic'
rr.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
1 warning generated.
compiling v8.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_array.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_callbacks.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_context.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_date.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_debug.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_exception.cpp
clang: warning: argument unused during compilation: '-rdynamic'
v8_exception.cpp:10:16: warning: unused variable 'stack' [-Wunused-variable]
  static void* stack[20];
               ^
1 warning generated.
compiling v8_external.cpp
clang: warning: argument unused during compilation: '-rdynamic'
v8_external.cpp:10:9: warning: unused variable 'references' [-Wunused-variable]
  VALUE references;
        ^
1 warning generated.
compiling v8_function.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_handle.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_locker.cpp
clang: warning: argument unused during compilation: '-rdynamic'
v8_locker.cpp:45:5: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
v8_locker.cpp:85:5: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^
2 warnings generated.
compiling v8_message.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_object.cpp
clang: warning: argument unused during compilation: '-rdynamic'
v8_object.cpp:77:19: warning: unused variable 'proto' [-Wunused-variable]
    Handle<Value> proto(rr_rb2v8(prototype));
                  ^
1 warning generated.
compiling v8_script.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_string.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_template.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_try_catch.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_v8.cpp
clang: warning: argument unused during compilation: '-rdynamic'
compiling v8_value.cpp
clang: warning: argument unused during compilation: '-rdynamic'
v8_value.cpp:100:9: warning: unused function 'ToInt32' [-Wunused-function]
  VALUE ToInt32(VALUE self) {
        ^
1 warning generated.
compiling v8_weakref.cpp
clang: warning: argument unused during compilation: '-rdynamic'
linking shared-object v8.bundle
clang: error: no such file or directory: '/Users/dennischen/.rvm/gems/ruby-1.9.3-p194@panini/gems/libv8-3.3.10.4/lib/libv8/build/v8/libv8.a'
make: *** [v8.bundle] Error 1

can anyone help me figure out how to get this gem to work? I have the command line tools installed.

回答1:

If you decide to use a newer therubyracer gem version, you will no longer have this problem

Otherwise:

brew tap homebrew/dupes # Thanks Tom
brew install apple-gcc42

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

brew uninstall v8

gem uninstall libv8

gem install therubyracer -v '0.10.2' # specify version

回答2:

So I finally got it working after some struggling... thanks to Simon and Alvaro.

I have one thing to add though, using the flag --with-system-v8 did not work for me... So i removed my system v8 with

brew uninstall v8

And the run

gem install libv8

If you have already run gem install libv8 with the system v8 flag be sure to uninstall that gem version (do it by running gem uninstall libv8). The important thing is that you shouldn't use the one provided by brew, it does not seem to work in Mavericks (it gets installed well and bundler will report that your bundle is complete, but your app will fail when it tries to use v8).

To summarize the answer, doing the following worked for me:

brew install apple-gcc42
sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2 /usr/bin/gcc
sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/g++-4.2 /usr/bin/g++
sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/cpp-4.2 /usr/bin/cpp

brew uninstall v8
gem install libv8
gem install therubyracer

回答3:

I had the same problem, this works for me:

therubyracer (0.10.2) & libv8 (3.3.10.4)

First of all:

• brew install apple-gcc42
• you must link all the binary files of the compilers (gcc, cpp, g++) to /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/<compiler>

After, you could try this:

• brew install v8
• gem install libv8 -v '3.3.10.4' -- --with-system-v8
• gem install therubyracer -v 'therubyracer' or bundle install into the directory of the rails project.

回答4:

I just had the same problem and one solution is currently to use apple-gcc42 instead of clang to compile both gems :

brew install apple-gcc42

And then you have the choice between doing some symlinks in /usr/bin for {gcc,g++,c++} binaries :

sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2 /usr/bin/gcc
sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/g++-4.2 /usr/bin/g++
sudo ln -s /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/cpp-4.2 /usr/bin/cpp

In fact g++ should be enough.

Or...you could export CC/CXX/CPP environment variables with paths corresponding to the binaries created by homebrew. That's surely a cleaner workaround.

A third solution is to download Xcode 4.6.3 and install it in the Applications folder. Then, enter in the terminal:

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

Once the gem has been installed you can switch back to Xcode 5.0 :

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

回答5:

I found a workaround that worked without installing apple-gcc42.

This will work if the error message you're getting looks like this:

clang: error: no such file or directory: '/Users/mscottford/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/libv8-3.3.10.4/lib/libv8/build/v8/libv8.a'

Then you should be able to do the following:

brew install v8
bundle install 
# after failing create link from brew installed v8 to error location
ln -s /usr/local/Cellar/v8/3.21.17/lib/libv8_base.x64.a /Users/mscottford/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/libv8-3.3.10.4/lib/libv8/build/v8/libv8.a
bundle install

Source: https://github.com/cowboyd/therubyracer/issues/277#issuecomment-27734348

回答6:

As suggested in many answers, the easiest thing to do is to compile The Ruby Racer native extensions with Apple GCC 4.2 (instead of the version installed with Xcode).

If you're using MacPorts you shouldn't have to manually deal with setting up symbolic links for the GCC binaries. The port select command does it for you. If you haven't updated MacPorts since installing Mavericks, do a sudo port selfupdate. With MacPorts up-to-date, try the following:

# If you don't have it, install the port for Apple's GCC 4.2
sudo port install apple-gcc42 

    # OR

# If you had apple-gcc42 already (before Mavericks), update it
sudo port upgrade apple-gcc42


# Same result as manual symlinking of GCC in other answers
sudo port select gcc apple-gcc42 && hash -r

# Install therubyracer, will install libv8 gem dependency
#  *note* if you have any existing versions of these gems, remove them
gem install therubyracer

# Restore GCC to system default (optional)
sudo port select gcc none && hash -r

In general this procedure (sudo port select gcc [version]) will work any time you want to use a specific GCC version instead of the one installed by Xcode (Apple LLVM v5 for 10.9 Mavericks/Xcode 5).

回答7:

I manage to install therubyracer 0.12 and libv8 3.16.14.3 on ruby 2.0.0p353 and os x 10.9

libv8 requires gcc42

brew install v8
brew install apple-gcc42
sudo ln -sf /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/gcc-4.2 /usr/bin/gcc
sudo ln -sf /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/g++-4.2 /usr/bin/g++
sudo ln -sf /usr/local/Cellar/apple-gcc42/4.2.1-5666.3/bin/cpp-4.2 /usr/bin/cpp
gem install libv8

therubyracer requires later gcc

brew install gcc49
sudo ln -sf /usr/local/Cellar/gcc49/4.9-20131110/bin/gcc-4.9 /usr/bin/gcc
sudo ln -sf /usr/local/Cellar/gcc49/4.9-20131110/bin/g++-4.9 /usr/bin/g++
sudo ln -sf /usr/local/Cellar/gcc49/4.9-20131110/bin/cpp-4.9 /usr/bin/cpp

Gemfile

gem 'therubyracer', :require => 'v8', :platforms => :ruby

use bundle instead of gem install therubyracer

回答8:

This should be a failsafe and clean way (no symlinks) to to install therubyracer for anyone having trouble.

Taken from: gem install therubyracer -v 0.11.4 fails on OS X 10.10

install Xcode (if you don't already have one of these versions) 6.1.1, 6.2-beta or 6.3-beta and (this one is needed) 4.6.3

gem uninstall libv8 if you haven't already done so

switch to Xcode 4.6.3

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

gem install libv8 -v '3.11.8.17' Or whichever version is tied to your version of therubyracer

switch to Xcode 6.1.1, 6.2-beta or 6.3-beta (or if you want to try your current install of Xcode, adjust this line, I've confirmed all 3 of these work)

sudo xcode-select --switch /Applications/Xcode6.1.1.app/Contents/Developer

gem install therubyracer -v '0.11.4' or the version you're trying to install.

回答9:

I had a nearly identical error when trying to install therubyracer 0.12.0 to get it to work with libv8. This worked for me:

$ brew upgrade gcc

$ gem uninstall therubyracer

$ gem uninstall libv8

$ gem install therubyracer -v '0.12.0'
Fetching: therubyracer-0.12.0.gem (100%)
Building native extensions.  This could take a while...
Successfully installed therubyracer-0.12.0
1 gem installed

$ gem install libv8 -v '3.16.14.3' -- --with-system-v8
Fetching: libv8-3.16.14.3.gem (100%)
Building native extensions with: '--with-system-v8'
This could take a while...
Successfully installed libv8-3.16.14.3
1 gem installed

回答10:

I had this same problem when I upgraded from OSX Mountain Lion to OSX Mavericks.

Upgrading from ruby-1.8.7-p354 to ruby-1.8.7-375 did the trick for me.

Maybe try upgraded from ruby 1.9.3-p194 to rc1 (1.9.3 is above p484 now)

assuming you use rbenv:

rbenv install 1.9.3-rc1
rbenv rehash
rbenv global 1.9.3-rc1
bundle install

回答11:

I had this problem after upgrading from Mavericks to Yosemite. The issue was that I compiled my Ruby version with the old version of OSX.

If I ran

ruby -rubygems -e 'puts Gem::Platform.new(RUBY_PLATFORM)'

I would get x86_64-darwin-13 instead of x86_64-darwin-14 for Yosemite.

To re-install Ruby I

1. Completely removed old version: rvm remove ruby-2.1.1
2. Re-installed from source (the --disable-binary doesnt use pre-compiled binaries and forces a build): rvm reinstall --disable-binary 2.1

Then I was able to run bundle install with no errors after trying all the solutions above.

回答12:

What I did was to on osx mavericks:

git clone [e-mail]:cowboyd/therubyracer.git

Then:

gem build therubyracer.gemspec
gem install therubyracer-0.12.1.gem

This procedure downloaded a binary version of libv8 and installed it.