Try to be compatible with ruby 1.8

CHANGES

@@ -1,4 +1,7 @@
+2017-01-13 (1.8.6)
+  * Be compatible with ancient ruby 1.8 (maybe?)
 2015-09-11 (1.8.5)
+  * Be compatible with ruby 2.4.0
   * There were still some mentions of dual GPL licensing in the source, but JSON
     has just the Ruby license that itself includes an explicit dual-licensing
     clause that allows covered software to be distributed under the terms of

VERSION

@@ -1 +1 @@
-1.8.5
+1.8.6

ext/json/ext/generator/generator.h

@@ -21,6 +21,10 @@
 #define rb_obj_instance_variables(object) rb_funcall(object, rb_intern("instance_variables"), 0)
 #endif
 
+#ifndef RB_TYPE_P
+#define RB_TYPE_P(obj, type) (rb_type(obj) == type)
+#endif
+
 #define option_given_p(opts, key) RTEST(rb_funcall(opts, i_key_p, 1, key))
 
 /* unicode definitions */

json_pure.gemspec

@@ -1,14 +1,14 @@
 # -*- encoding: utf-8 -*-
-# stub: json_pure 1.8.5 ruby lib
+# stub: json_pure 1.8.6 ruby lib
 
 Gem::Specification.new do |s|
   s.name = "json_pure".freeze
-  s.version = "1.8.5"
+  s.version = "1.8.6"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib".freeze]
   s.authors = ["Florian Frank".freeze]
-  s.date = "2017-01-12"
+  s.date = "2017-01-13"
   s.description = "This is a JSON implementation in pure Ruby.".freeze
   s.email = "[email protected]".freeze
   s.extra_rdoc_files = ["README.md".freeze]

lib/json/version.rb

@@ -1,6 +1,6 @@
 module JSON
   # JSON version
-  VERSION         = '1.8.5'
+  VERSION         = '1.8.6'
   VERSION_ARRAY   = VERSION.split(/\./).map { |x| x.to_i } # :nodoc:
   VERSION_MAJOR   = VERSION_ARRAY[0] # :nodoc:
   VERSION_MINOR   = VERSION_ARRAY[1] # :nodoc: