Ruby
Gem
libv8

libv8 の gem install にハマって解決したメモ

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libv8 の gem install に失敗する

$ bundle install

.
.
.
Installing libv8 3.16.14.13 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory: /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/ext/libv8
/Users/minami/.rbenv/versions/2.3.0/bin/ruby -r ./siteconf20160427-41464-dwbunz.rb extconf.rb
creating Makefile
Compiling v8 for x64
Using python 2.7.10
Using compiler: /usr/bin/c++ (clang version 7.3.0)
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: file: /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o has no symbols
In file included from ../src/accessors.cc:28:
In file included from ../src/v8.h:60:
In file included from ../src/objects-inl.h:38:
In file included from ../src/elements.h:32:
../src/objects.h:5252:44: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
static const int kElementsKindMask = (-1 << kElementsKindShift) &
~~ ^
../src/objects.h:7386:36: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]
(~kMaxCachedArrayIndexLength << kArrayIndexHashLengthShift) |
~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
2 errors generated.
make[1]: *** [/Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/v8_base/src/accessors.o] Error 1
make: *** [x64.release] Error 2
/Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/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/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/ext/libv8/location.rb:35:in `each'
from /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/ext/libv8/location.rb:35:in `verify_installation!'
from /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/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_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3 -Dwerror=''
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/conversions.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/diy-fp.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/dtoa.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fast-dtoa.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fixed-dtoa.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/once.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparse-data.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser-api.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/scanner.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/strtod.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/token.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/unicode.o
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser_lib/src/utils.o
LIBTOOL-STATIC /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/libpreparser_lib.a
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/preparser/preparser/preparser-process.o
LINK(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/preparser
CXX(target) /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/vendor/v8/out/x64.release/obj.target/v8_base/src/accessors.o

extconf failed, exit code 1

Gem files will remain installed in /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13 for inspection.
Results logged to /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-15/2.3.0-static/libv8-3.16.14.13/gem_make.out

libv8 のビルドで失敗してる。

http://qiita.com/mana-bin/items/0ee8b35c1726bacd8ecf を参考に、 bundle install 時のオプションを変更

$ bundle config build.libv8 --with-system-v8

再度 bundle install。今度は、therubyracer の install に失敗。

Installing therubyracer 0.12.2 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory: /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/therubyracer-0.12.2/ext/v8
/Users/minami/.rbenv/versions/2.3.0/bin/ruby -r ./siteconf20160427-47511-1o6c9vy.rb extconf.rb
checking for main() in -lpthread... yes
checking for main() in -lobjc... yes
checking for v8.h... no
*** 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=/Users/minami/.rbenv/versions/2.3.0/bin/$(RUBY_BASE_NAME)
--with-pthreadlib
--without-pthreadlib
--with-objclib
--without-objclib
--enable-debug
--disable-debug
--with-v8-dir
--without-v8-dir
--with-v8-include
--without-v8-include=${v8-dir}/include
--with-v8-lib
--without-v8-lib=${v8-dir}/lib
/Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/ext/libv8/location.rb:50:in `configure': You have chosen to use the version of V8 found on your system (Libv8::Location::System::NotFoundError)
and *not* the one that is bundle with the libv8 rubygem. However,
it could not be located. please make sure you have a version of
v8 that is compatible with 3.16.14.13 installed. You may
need to special --with-v8-dir options if it is in a non-standard
location

thanks,
The Mgmt

from /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/libv8-3.16.14.13/lib/libv8.rb:7:in `configure_makefile'
from extconf.rb:32:in `<main>'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

/Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-15/2.3.0-static/therubyracer-0.12.2/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/therubyracer-0.12.2 for inspection.
Results logged to /Users/minami/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-15/2.3.0-static/therubyracer-0.12.2/gem_make.out

log ファイルを見ると、 v8.h が見つからないとか出てる。

# ~/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-15/2.3.0-static/therubyracer-0.12.2/mkmf.log

54 --------------------
55
56 find_header: checking for v8.h... -------------------- no
57
58 "clang -E -I/Users/minami/.rbenv/versions/2.3.0/include/ruby-2.3.0/x86_64-darwin15 -I/Users/minami/.rbenv/versions/2.3.0/include/ruby-2.3.0/ruby/backward -I/Users/minami/.rbenv/versions/2.3.0/inclu
59 clang: warning: argument unused during compilation: '-rdynamic'
60 conftest.c:3:10: fatal error: 'v8.h' file not found
61 #include <v8.h>
62 ^
63 1 error generated.
64 checked program was:
65 /* begin */
66 1: #include "ruby.h"
67 2:
68 3: #include <v8.h>
69 /* end */
70
71 --------------------
72

http://wknar.hatenablog.com/entry/update-gcc-and-v8 曰く、brew install v8 すれば v8.h が見つかるようになるらしかったので、してみた。

$ brew install v8

==> Downloading https://homebrew.bintray.com/bottles/v8-4.9.385.28.el_capitan.bottle.tar.gz
######################################################################## 100.0%
==> Pouring v8-4.9.385.28.el_capitan.bottle.tar.gz
🍺 /usr/local/Cellar/v8/4.9.385.28: 26 files, 676.4M
brew install v8 4.80s user 3.18s system 7% cpu 1:43.79 total

この状態でまた bundle install。が、同様のエラー。

v8.h は /usr/local/Cellar/v8/4.9.385.28/include/v8.h にあるが、どうも path が通ってないっぽい????


最終的に

home-brew で古い v8 を install した。

具体的には、brew install homebrew/versions/v8-315 で version 3.15.11.18 を install。

libv8 では —with-system-v8 を指定し、さらに therubyracer install の際には v8-315 の directory を v8-dir として指定するようにした。

$ brew install homebrew/versions/v8-315

$ bundle config build.libv8 --with-system-v8
$ bundle config build.therubyracer --with-v8-dir=/usr/local/opt/v8-315/