JFlex Support for IDEA 13

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create .flex file in IDEA 13 following the tutorial 
http://confluence.jetbrains.com/display/IntelliJIDEA/Lexer+and+Parser+Definition
.
2. Try to disable the option "Settings → Compiler → Use external build", in 
order to make code generation work. But this option is no longer present in 
IDEA 13.

What is the expected output? What do you see instead?
Generated Code, option does not exist to disable "User external build"


What version of the product are you using? On what operating system?
Linux Mint, IDEA 13.0.1 Community Edition (Build #: 133.331)

Please provide any additional information below.

Original issue reported on code.google.com by VTSteve...@gmail.com on 29 Dec 2013 at 10:53