[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: side stepping automake limitations with custom dependencies
From: |
Nick Bowler |
Subject: |
Re: side stepping automake limitations with custom dependencies |
Date: |
Thu, 23 Jun 2011 16:51:43 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On 2011-06-23 16:25 -0400, Jie Zhang wrote:
> > With Posix make Makefiles, it would be doable with some more work, but
> > automake doesn't. With GNU make extensions used in the Makefile.am, it
> > is almost impossible without implementing a large set of GNU make
> > extension parsing in automake as well.
> >
> With my limited Makefile knowledge, I thought it was enough to look
> one line ahead to see if the next line started with a $.RECIPEPREFIX.
> If yes, this rule has a recipe, if no, this rule is only for
> dependence.
Nope. One counterexample with POSIX makefiles is that they can have
rules with commands entirely on one line. For instance
foo: ; echo hello > $@
Cheers,
--
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)