Merge pull request #2851 from hone/mruby_compiler

Need mruby-compiler to build mruby-bin-mruby and mruby-bin-mirb for

mrbgems/default.gembox

@@ -70,4 +70,7 @@ MRuby::GemBox.new do |conf|
 
   # Use extensional Kernel module
   conf.gem :core => "mruby-kernel-ext"
+
+  # Use mruby-compiler to build other mrbgems
+  conf.gem :core => "mruby-compiler"
 end

mrbgems/mruby-bin-mirb/mrbgem.rake

@@ -26,4 +26,5 @@ MRuby::Gem::Specification.new('mruby-bin-mirb') do |spec|
   end
 
   spec.bins = %w(mirb)
+  spec.add_dependency('mruby-compiler', :core => 'mruby-compiler')
 end

mrbgems/mruby-bin-mruby/mrbgem.rake

@@ -3,4 +3,5 @@ MRuby::Gem::Specification.new('mruby-bin-mruby') do |spec|
   spec.author  = 'mruby developers'
   spec.summary = 'mruby command'
   spec.bins = %w(mruby)
+  spec.add_dependency('mruby-compiler', :core => 'mruby-compiler')
 end