--- mruby-2.1.2/mrbgems/mruby-compiler/mrbgem.rake.orig	2021-08-08 20:26:02.296858100 -0700
+++ mruby-2.1.2/mrbgems/mruby-compiler/mrbgem.rake	2021-08-08 20:26:07.540857900 -0700
@@ -24,7 +24,7 @@
   # Parser
   file "#{dir}/core/y.tab.c" => ["#{dir}/core/parse.y", lex_def] do |t|
     yacc.run t.name, t.prerequisites.first
-    content = File.read(t.name).gsub(/^#line +\d+ +"\K.*$/){$&.relative_path}
+    content = File.read(t.name).gsub(/^#line +\d+ +"\K.*$/){$&.relative_path+'"'}
     File.write(t.name, content)
   end