[ruby-list:50705] [Fedora workstation 26] gem update errorについて

Fedora workstation 26=E3=81=ABruby 2.4.1p111=E3=81=AE=E3=83=91=E3=83=83=E3=
=82=B1=E3=83=BC=E3=82=B8=E3=82=92=E3=82=A4=E3=83=B3=E3=82=B9=E3=83=88=E3=83=
=BC=E3=83=AB=E3=81=97=E3=80=81gem
update=E3=81=A8=E3=82=B3=E3=83=9E=E3=83=B3=E3=83=89=E3=82=92=E3=81=86=E3=81=
=A4=E3=81=A8=E3=82=A8=E3=83=A9=E3=83=BC=E3=81=8C=E7=99=BA=E7=94=9F=E3=81=97=
update=E3=81=8C=E3=81=A7=E3=81=8D=E3=81=BE=E3=81=9B=E3=82=93
ruby=E3=82=B3=E3=83=9E=E3=83=B3=E3=83=89=E3=81=A7ruby=E3=81=AE=E3=83=97=E3=
=83=AD=E3=82=B0=E3=83=A9=E3=83=A0=E3=82=92=E5=8B=95=E4=BD=9C=E3=81=95=E3=81=
=9B=E3=82=8B=E3=81=AE=E3=81=AB=E3=81=AF=E3=82=A8=E3=83=A9=E3=83=BC=E3=81=AF=
=E7=99=BA=E7=94=9F=E3=81=97=E3=81=A6=E3=81=8A=E3=82=8A=E3=81=BE=E3=81=9B=E3=
=82=93

=E3=82=A8=E3=83=A9=E3=83=BC=E5=86=85=E5=AE=B9=E3=81=AA=E3=81=AE=E3=81=A7=E3=
=81=99=E3=81=8C=E3=80=81
$sudo gem update

Updating installed gems
Updating bigdecimal
Fetching: bigdecimal-1.3.2.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing bigdecimal:
ERROR: Failed to build gem native extension.

current directory:
/usr/local/share/gems/gems/bigdecimal-1.3.2/ext/bigdecimal
/usr/bin/ruby -r ./siteconf20170913-32392-10dxxw1.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/share/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in
/usr/local/share/gems/gems/bigdecimal-1.3.2 for inspection.
Results logged to /usr/local/lib64/gems/ruby/bigdecimal-1.3.2/gem_make.out
Updating did_you_mean
Fetching: did_you_mean-1.1.2.gem (100%)
Successfully installed did_you_mean-1.1.2
Parsing documentation for did_you_mean-1.1.2
Installing ri documentation for did_you_mean-1.1.2
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require':
cannot load such file -- json (LoadError)
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require=
'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/generator/json_index.rb:2:in
`<top (required)>'
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require=
'
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require=
'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/generator/darkfish.rb:176:in
`initialize'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:125:in `new'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:125:in
`document'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:196:in
`generate'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:56:in `block
in generation_hook'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:55:in `each'
from /usr/share/gems/gems/rdoc-5.1.0/lib/rdoc/rubygems_hook.rb:55:in
`generation_hook'
from /usr/share/rubygems/rubygems/request_set.rb:189:in `block in install'
from /usr/share/rubygems/rubygems/request_set.rb:188:in `each'
from /usr/share/rubygems/rubygems/request_set.rb:188:in `install'
from /usr/share/rubygems/rubygems/dependency_installer.rb:405:in `install'
from /usr/share/rubygems/rubygems/commands/update_command.rb:213:in
`update_gem'
from /usr/share/rubygems/rubygems/commands/update_command.rb:225:in `block
in update_gems'
from /usr/share/rubygems/rubygems/commands/update_command.rb:224:in `each'
from /usr/share/rubygems/rubygems/commands/update_command.rb:224:in
`update_gems'
from /usr/share/rubygems/rubygems/commands/update_command.rb:100:in
`execute'
from /usr/share/rubygems/rubygems/command.rb:310:in `invoke_with_build_args=
'
from /usr/share/rubygems/rubygems/command_manager.rb:169:in `process_args'
from /usr/share/rubygems/rubygems/command_manager.rb:139:in `run'
from /usr/share/rubygems/rubygems/gem_runner.rb:55:in `run'
from /bin/gem:21:in `<main>'

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=81=8C=E7=99=BA=E7=94=9F=E3=81=97=E3=81=A6=E3=81=84=E3=81=BE=E3=81=99=E3=80=
=82google=E3=81=A7=E6=A4=9C=E7=B4=A2=E3=82=92=E3=81=8B=E3=81=91Q&A=E3=81=AE=
=E3=82=B5=E3=82=A4=E3=83=88=E3=81=AA=E3=81=A9=E3=81=8B=E3=82=89ruby-devel=
=E3=82=92=E3=82=A4=E3=83=B3=E3=82=B9=E3=83=88=E3=83=BC=E3=83=AB=E3=81=97=E3=
=81=A6=E3=81=84=E3=82=8B=E6=96=B9=E3=82=92=E8=A6=8B=E3=81=8B=E3=81=91=E3=81=
=BE=E3=81=97=E3=81=9F=E3=81=AE=E3=81=A7ruby-devel=E3=82=92=E3=82=A4=E3=83=
=B3=E3=82=B9=E3=83=88=E3=83=BC=E3=83=AB=E3=81=97=E3=81=BE=E3=81=97=E3=81=9F=
=E3=81=8C=E4=BE=9D=E7=84=B6=E3=81=A8=E3=81=97=E3=81=A6=E3=82=A8=E3=83=A9=E3=
=83=BC=E3=81=AF=E7=99=BA=E7=94=9F=E3=81=97=E3=81=BE=E3=81=99=E3=80=82
=E5=AF=BE=E5=87=A6=E6=96=B9=E6=B3=95=E3=82=92=E5=BE=A1=E6=95=99=E6=8E=88=E3=
=81=97=E3=81=A6=E3=81=84=E3=81=9F=E3=81=A0=E3=81=91=E3=81=AA=E3=81=84=E3=81=
=A7=E3=81=97=E3=82=87=E3=81=86=E3=81=8B?