This is more of an FYI in case other people have this issue.
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/Users/bensnape/.rvm/rubies/ruby-2.1.4/bin/ruby -r ./siteconf20150331-70877-1roy5v2.rb extconf.rb
checking for main() in -lobjc... yes
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
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/bensnape/.rvm/gems/ruby-2.1.4/gems/libv8-3.3.10.4/lib/libv8/build/v8/libv8.a'
make: *** [v8.bundle] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/bensnape/.rvm/gems/ruby-2.1.4/gems/therubyracer-0.10.2 for inspection.
Results logged to /Users/bensnape/.rvm/gems/ruby-2.1.4/extensions/x86_64-darwin-13/2.1.0/therubyracer-0.10.2/gem_make.out
An error occurred while installing therubyracer (0.10.2), and Bundler cannot continue.
Make sure that `gem install therubyracer -v '0.10.2'` succeeds before bundling.
It's trivial, but ping me if you'd like to see a PR.