Railsの開発環境を構築している時に、bundle installしたら以下のエラーに遭遇。
$ bundle install
The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
Fetching gem metadata from https://rubygems.org/.........
Using rake 12.3.2
Using concurrent-ruby 1.1.5
Using i18n 1.7.0
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省略
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Using letter_opener 1.7.0
Using letter_opener_web 1.4.0
Fetching libv8 3.16.14.19
Installing libv8 3.16.14.19 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/ext/libv8
/Users/asakura1041/.rbenv/versions/2.5.1/bin/ruby -r ./siteconf20211008-85922-1nmfqfd.rb extconf.rb
creating Makefile
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/disable-building-tests.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/disable-werror-on-osx.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/disable-xcode-debugging.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/do-not-imply-vfp3-and-armv7.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/do-not-use-MAP_NORESERVE-on-freebsd.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/do-not-use-vfp2.patch
Applying /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/patches/fPIC-for-static.patch
Compiling v8 for x64
Using python 2.7.16
Using compiler: c++ (clang version 12.0.0)
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Beginning compilation. This will take some time.
Building v8 with env CXX=c++ LINK=c++ /usr/bin/make x64.release ARFLAGS.target=crs werror=no
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/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
clang: warning: include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
In file included from ../src/allocation.cc:33:
../src/utils.h:33:10: fatal error: 'climits' file not found
#include <climits>
^~~~~~~~~
1 error generated.
make[1]: *** [/Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o] Error 1
make: *** [x64.release] Error 2
/Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive
'/Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/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/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/ext/libv8/location.rb:35:in `each'
from /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/ext/libv8/location.rb:35:in `verify_installation!'
from /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19/ext/libv8/location.rb:26:in `install!'
from extconf.rb:7:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/libv8-3.16.14.19 for inspection.
Results logged to /Users/asakura1041/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/extensions/x86_64-darwin-19/2.5.0/libv8-3.16.14.19/gem_make.out
An error occurred while installing libv8 (3.16.14.19), and Bundler cannot continue.
Make sure that `gem install libv8 -v '3.16.14.19' --source 'https://rubygems.org/'` succeeds before bundling.
In Gemfile:
therubyracer was resolved to 0.12.3, which depends on
libv8【解決した方法】
ターミナルで以下のコマンドをそれぞれ実行する。
$ bundle config --local build.libv8 --with-system-v8 You are replacing the current
$ bundle config --local build.therubyracer --with-v8-dir=$(brew --prefix v8-315)その後、再度bundle installしたらtherubyracer及びlibv8に関するエラーは無くなりました！！
