JRuby 1.7.19 fails to build on Ubuntu 14

[suetanvil]

I am unable to install jruby-1.7.19 on Ubuntu 14 using rbenv.

After some digging, I tracked down the problem to a C++ compile-time error while installing the jruby-launcher gem. When I commented out the call to install_ruby_launcher in ruby-build, jruby installed with no problems and ran perfectly.

I'll be submitting a pull request shortly that makes jruby-launcher optional.

[zhaohanweng]

Currently still cannot install jruby via rbenv install jruby-1.7.19 on mac with jdk8.

Output:

Last 10 log lines:
         ^
1 error generated.
make[2]: *** [build/unix/Darwin/argparser.o] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2

make failed, uncaught signal 2

Gem files will remain installed in /usr/local/var/rbenv/versions/jruby-1.7.19/lib/ruby/gems/shared/gems/jruby-launcher-1.1.1-java for inspection.
Results logged to /usr/local/var/rbenv/versions/jruby-1.7.19/lib/ruby/gems/shared/extensions/universal-java-1.8/1.9/jruby-launcher-1.1.1-java/gem_make.out

Still have the jruby-launcher problem. will this fix be merged next release?

[zhaohanweng]

I tried just removing the install-jruby-launcher line in the ruby-build. it installed the jruby fine. but I cannot use gem after.

>> gem
>> /usr/local/var/rbenv/versions/jruby-1.7.19/bin/gem: line 4: syntax error near unexpected token `('
>> /usr/local/var/rbenv/versions/jruby-1.7.19/bin/gem: line 4: `load File.join(File.dirname(__FILE__), 'jgem')'

[cldwalker]

Also unable to install jruby-1.7.19 on osx 10.10 with jdk8 and getting the same errors as @zhaohanweng

[mislav]

Is JRuby 1.7 even compatible with JDK 8?

[zhaohanweng]

I am using jdk8 on osx as well. and rbenv install jruby-1.7.20 works.

[hsbt]

JRuby 1.7.x is EOL now. see jruby/jruby#4112