Merge pull request #2081 from nghttp2/fix-mruby-crash

mruby: Exclude mrdb gem which causes nghttpx to crash

third-party/build_config.rb

@@ -18,8 +18,30 @@ def config(conf)
 
   conf.build_dir = ENV['BUILD_DIR']
 
-  # include the default GEMs
-  conf.gembox 'default'
+  # Here is the mruby gems included in default.gembox minus
+  # mruby-bin-debugger which causes the application to crash.
+  conf.gembox "stdlib"
+  conf.gembox "stdlib-ext"
+  conf.gembox "stdlib-io"
+  conf.gembox "math"
+  conf.gembox "metaprog"
+
+  # Generate mrbc command
+  conf.gem :core => "mruby-bin-mrbc"
+
+  # Generate mirb command
+  conf.gem :core => "mruby-bin-mirb"
+
+  # Generate mruby command
+  conf.gem :core => "mruby-bin-mruby"
+
+  # Generate mruby-strip command
+  conf.gem :core => "mruby-bin-strip"
+
+  # Generate mruby-config command
+  conf.gem :core => "mruby-bin-config"
+
+  # Added by nghttp2 project
   conf.gem :core => 'mruby-eval'
 end