v1.4.16 needs a java gem release for JRuby

[flavorjones]

See previous instance of this problem at #103 for v1.4.15

[flavorjones]

The error message I see when I try to install v1.4.16 under JRuby:

Building native extensions. This could take a while...
ERROR:  Error installing racc:
	ERROR: Failed to build gem native extension.

    current directory: /home/flavorjones/.rvm/gems/jruby-9.2.9.0/gems/racc-1.4.16/ext/racc/cparse
/home/flavorjones/.rvm/rubies/jruby-9.2.9.0/bin/jruby -r ./siteconf20200111-5290-1b2xrcs.rb extconf.rb
checking for rb_ary_subseq()... RuntimeError: The compiler failed to generate an executable file.
You have to install development tools first.

        try_do at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:456
     try_link0 at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:541
      try_link at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:556
      try_func at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:765
     have_func at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:1051
  checking_for at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:942
      postpone at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:350
          open at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:320
      postpone at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:350
          open at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:320
      postpone at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:346
  checking_for at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:941
     have_func at /home/flavorjones/.rvm/rubies/jruby-9.2.9.0/lib/ruby/stdlib/mkmf.rb:1050
        <main> at extconf.rb:6
*** 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=/home/flavorjones/.rvm/rubies/jruby-9.2.9.0/bin/jruby

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

  /home/flavorjones/.rvm/gems/jruby-9.2.9.0/extensions/universal-java-11/2.5.0/racc-1.4.16/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /home/flavorjones/.rvm/gems/jruby-9.2.9.0/gems/racc-1.4.16 for inspection.
Results logged to /home/flavorjones/.rvm/gems/jruby-9.2.9.0/extensions/universal-java-11/2.5.0/racc-1.4.16/gem_make.out

[flavorjones]

It looks like support for building a Java gem was removed in aa0e565, when Hoe was removed. One attempt to fix the JRuby build appears in 95230dd but that's not sufficient to build a java platform gem.

[flavorjones]

OK - I've locally modified the gemspec to do the right thing under JRuby, then generated a java platform gem from v1.4.16 tag (commit 04a7245), tested it and pushed it to rubygems.

patch:

diff --git a/racc.gemspec b/racc.gemspec
index 81bb6a4..19441b9 100644
--- a/racc.gemspec
+++ b/racc.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
 
   s.executables = ["racc", "racc2y", "y2racc"]
   s.files = ["COPYING", "ChangeLog", "DEPENDS", "Manifest.txt", "README.ja.rdoc", "README.rdoc", "Rakefile", "TODO", "bin/racc", "bin/racc2y", "bin/y2racc", "ext/racc/MANIFEST", "ext/racc/com/headius/racc/Cparse.java", "ext/racc/cparse/cparse.c", "ext/racc/cparse/extconf.rb", "fastcache/extconf.rb", "fastcache/fastcache.c", "lib/racc.rb", "lib/racc/compat.rb", "lib/racc/debugflags.rb", "lib/racc/exception.rb", "lib/racc/grammar.rb", "lib/racc/grammarfileparser.rb", "lib/racc/info.rb", "lib/racc/iset.rb", "lib/racc/logfilegenerator.rb", "lib/racc/parser-text.rb", "lib/racc/parser.rb", "lib/racc/parserfilegenerator.rb", "lib/racc/pre-setup", "lib/racc/sourcetext.rb", "lib/racc/state.rb", "lib/racc/statetransitiontable.rb", "lib/racc/static.rb", "misc/dist.sh", "rdoc/en/NEWS.en.rdoc", "rdoc/en/grammar.en.rdoc", "rdoc/ja/NEWS.ja.rdoc", "rdoc/ja/command.ja.html", "rdoc/ja/debug.ja.rdoc", "rdoc/ja/grammar.ja.rdoc", "rdoc/ja/index.ja.html", "rdoc/ja/parser.ja.rdoc", "rdoc/ja/usage.ja.html", "sample/array.y", "sample/array2.y", "sample/calc-ja.y", "sample/calc.y", "sample/conflict.y", "sample/hash.y", "sample/lalr.y", "sample/lists.y", "sample/syntax.y", "sample/yyerr.y", "setup.rb", "tasks/doc.rb", "tasks/email.rb", "test/assets/cadenza.y", "test/assets/cast.y", "test/assets/chk.y", "test/assets/conf.y", "test/assets/csspool.y", "test/assets/digraph.y", "test/assets/echk.y", "test/assets/edtf.y", "test/assets/err.y", "test/assets/error_recovery.y", "test/assets/expect.y", "test/assets/firstline.y", "test/assets/huia.y", "test/assets/ichk.y", "test/assets/intp.y", "test/assets/journey.y", "test/assets/liquor.y", "test/assets/machete.y", "test/assets/macruby.y", "test/assets/mailp.y", "test/assets/mediacloth.y", "test/assets/mof.y", "test/assets/namae.y", "test/assets/nasl.y", "test/assets/newsyn.y", "test/assets/noend.y", "test/assets/nokogiri-css.y", "test/assets/nonass.y", "test/assets/normal.y", "test/assets/norule.y", "test/assets/nullbug1.y", "test/assets/nullbug2.y", "test/assets/opal.y", "test/assets/opt.y", "test/assets/percent.y", "test/assets/php_serialization.y", "test/assets/recv.y", "test/assets/riml.y", "test/assets/rrconf.y", "test/assets/ruby18.y", "test/assets/ruby19.y", "test/assets/ruby20.y", "test/assets/ruby21.y", "test/assets/ruby22.y", "test/assets/scan.y", "test/assets/syntax.y", "test/assets/tp_plus.y", "test/assets/twowaysql.y", "test/assets/unterm.y", "test/assets/useless.y", "test/assets/yyerr.y", "test/bench.y", "test/helper.rb", "test/infini.y", "test/regress/cadenza", "test/regress/cast", "test/regress/csspool", "test/regress/edtf", "test/regress/huia", "test/regress/journey", "test/regress/liquor", "test/regress/machete", "test/regress/mediacloth", "test/regress/mof", "test/regress/namae", "test/regress/nasl", "test/regress/nokogiri-css", "test/regress/opal", "test/regress/php_serialization", "test/regress/riml", "test/regress/ruby18", "test/regress/ruby22", "test/regress/tp_plus", "test/regress/twowaysql", "test/scandata/brace", "test/scandata/gvar", "test/scandata/normal", "test/scandata/percent", "test/scandata/slash", "test/src.intp", "test/start.y", "test/test_chk_y.rb", "test/test_grammar_file_parser.rb", "test/test_racc_command.rb", "test/test_scan_y.rb", "test/testscanner.rb", "web/racc.en.rhtml", "web/racc.ja.rhtml"]
-  s.extensions = ["ext/racc/cparse/extconf.rb"]
   s.rdoc_options = ["--main", "README.rdoc"]
   s.extra_rdoc_files = ["Manifest.txt", "README.ja.rdoc", "README.rdoc", "rdoc/en/NEWS.en.rdoc", "rdoc/en/grammar.en.rdoc", "rdoc/ja/NEWS.ja.rdoc", "rdoc/ja/debug.ja.rdoc", "rdoc/ja/grammar.ja.rdoc", "rdoc/ja/parser.ja.rdoc", "README.ja.rdoc", "README.rdoc"]
   s.require_paths = ["lib"]
@@ -22,5 +21,8 @@ Gem::Specification.new do |s|
 
   if RUBY_PLATFORM =~ /java/
     s.files << 'lib/racc/cparse-jruby.jar'
+    s.platform = 'java'
+  else
+    s.extensions = ["ext/racc/cparse/extconf.rb"]
   end
 end

[flavorjones]

I'll rebase this patch onto master and submit a PR.