“gem install therubyracer -v '0.10.2'” on

Question

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.

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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.

Answer 5

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.

Answer 6

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.