commit bf226a9ac40e2296589004be89b4420b2121e000
Author: eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date:   Fri Aug 3 15:11:22 2018 +0000

    Fix missed update of parser source in r62429
    
    git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64175 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

diff --git a/ext/json/parser/parser.rl b/ext/json/parser/parser.rl
index 29900a4a4a..fba01ac0e5 100644
--- a/ext/json/ext/parser/parser.rl
+++ b/ext/json/ext/parser/parser.rl
@@ -824,6 +824,7 @@ static VALUE cParser_source(VALUE self)
 
 void Init_parser(void)
 {
+#undef rb_intern
     rb_require("json/common");
     mJSON = rb_define_module("JSON");
     mExt = rb_define_module_under(mJSON, "Ext");
