From: Nobuyoshi Nakada <nobu@...>
Date: 2007-06-11T13:33:53+09:00
Subject: Re: Doing rake-like stuff with mkmf?

Hi,

At Sat, 9 Jun 2007 23:15:08 +0900,
Wincent Colaiuta wrote in [ruby-talk:254933]:
> But what if I want to do some more sophisticated rake-like stuff where
> I manually specify dependencies? For example:
> 
> * Start with ANTLR grammar file "Grammar.g"
> 
> * Whenever this file is updated, have to run ANTLR on it and this
> regenerates new "GrammarLexer.c" and "GrammarParser.c" files
> 
> * In this case want to rebuild the extension
> 
> Is there a way to do this using mkmf? Or do I have to manually tweak
> the generated Makefile myself?

create_makefie in mkmf appends the content of "depend" file if
it exists, so that you can add your own rules.

-- 
Nobu Nakada