lib/rubygems/ext/rake_builder.rb in rubygems-update-1.2.0 vs lib/rubygems/ext/rake_builder.rb in rubygems-update-1.3.0

@@ -14,10 +14,10 @@
       cmd << " #{ARGV.join " "}" unless ARGV.empty?
       run cmd, results
     end
 
     cmd = ENV['rake'] || 'rake'
-    cmd << " RUBYARCHDIR=#{dest_path} RUBYLIBDIR=#{dest_path}"
+    cmd += " RUBYARCHDIR=#{dest_path} RUBYLIBDIR=#{dest_path}" # ENV is frozen
 
     run cmd, results
 
     results
   end