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Re: An autoconf tutorial.

From: Ralf Corsepius
Subject: Re: An autoconf tutorial.
Date: Thu, 26 May 2005 06:42:00 +0200

On Thu, 2005-05-26 at 09:59 +0900, Andre Caldas wrote:
> Hello, Ed!
>       There are many things that are considered "bad practice". There are 
> many things that are "old deprecated" ways to do things.
>       For example, using the file name "" is outdated. You should 
> use "".
>       I guess (I don't really know) that the reason for this is that "in" is 
> supposed to mean "input". "" is an input file to generate a 
> "configure" script. This, however, assumes you have only one program 
> processing the inputs:
>      ---> configure
> if you have something like this
>      ---> something.aa ---> something,
> the extension "in" makes no sense. 

Just think about suffix rules to process these files:

- *.ac is input to autoconf
- *.in is input to configure/config.status.
- *.am is input to automake

I.e. "" more or less is a historical defect in autoconf :-)


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