Getting ERROR on JRuby?

[shubhamjaincav]

Getting ERROR on JRuby environment

please help on it. How to install gem in JRuby.

ERROR :

Fetching: byebug-9.0.6.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing byebug:
ERROR: Failed to build gem native extension.

vendor/jruby/bin/jruby -r ./siteconf20200625-23387-1wmouey.rb extconf.rb
creating Makefile

current directory: vendor/bundle/jruby/2.5.0/gems/byebug-9.0.6/ext/byebug
make "DESTDIR=" clean

current directory: vendor/bundle/jruby/2.5.0/gems/byebug-9.0.6/ext/byebug
make "DESTDIR="
make: *** No rule to make target 'vendor/jruby/lib/ruby/include/ruby/ruby.h', needed by 'threads.o'. Stop.

make failed, exit code 2

Gem files will remain installed in vendor/bundle/jruby/2.5.0/gems/byebug-9.0.6 for inspection.
Results logged to vendor/bundle/jruby/2.5.0/extensions/universal-java-11/2.5.0/byebug-9.0.6/gem_make.out

[AlexWayfer]

I have the same problem.

Work-around: disable byebug for JRuby:

  unless RUBY_PLATFORM == 'java'
    spec.add_development_dependency 'pry-byebug', '~> 3.9'
  end

[Faq]

#179 (comment)