I'm using RVM to manage my gems.
Gemfile:
source 'https://rubygems.org'
gem 'libv8', '~> 3.11.8'
Trying with ruby-2.1.2:
#1 Terminal commands on Mac OSXrvm use ruby-2.1.2@test
rm Gemfile.lock
bundle install
The above works normally. Now trying with ruby-2.3.1:
#2 Terminal commands on Mac OSXrvm use ruby-2.3.1@test
rm Gemfile.lock
bundle install
This gives errors:
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/ext/libv8
/Users/fullname/.rvm/rubies/ruby-2.3.1/bin/ruby -r ./siteconf20160906-88565-91zqg8.rb extconf.rb
creating Makefile
Compiling v8 for x64
Using python 2.7.12
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Using compiler: /usr/bin/g++
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
../src/cached-powers.cc:136:18: error: unused variable 'kCachedPowersLength' [-Werror,-Wunused-const-variable]
static const int kCachedPowersLength = ARRAY_SIZE(kCachedPowers);
^
1 error generated.
make[1]: *** [/Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o] Error 1
make: *** [x64.release] Error 2
/Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound)
from /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `each'
from /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `verify_installation!'
from /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/ext/libv8/location.rb:26:in `install!'
from extconf.rb:7:in `<main>'
GYP_GENERATORS=make \
build/gyp/gyp --generator-output="out" build/all.gyp \
-Ibuild/standalone.gypi --depth=. \
-Dv8_target_arch=x64 \
-S.x64 -Dv8_can_use_vfp_instructions=true
CXX(target) /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
CXX(target) /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o
CXX(target) /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o
CXX(target) /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o
CXX(target) /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o
extconf failed, exit code 1
Gem files will remain installed in /Users/fullname/.rvm/gems/ruby-2.3.1@test/gems/libv8-3.11.8.17 for inspection.
Results logged to /Users/fullname/.rvm/gems/ruby-2.3.1@test/extensions/x86_64-darwin-15/2.3.0/libv8-3.11.8.17/gem_make.out
On Linux Debian, both work fine.
I would like to know why does this work with ruby-2.1.2 and not on ruby-2.3.1 on MacOSX 10.11.6 ?