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Re: distclean should walk subdirs in reverse order

From: Sam Varshavchik
Subject: Re: distclean should walk subdirs in reverse order
Date: Sat, 09 Mar 2013 17:47:47 -0500

Harlan Stenn writes:

Stefano Lattarini writes:
> My suggestion: if files in different subdirectories are actually
> dependent on each other (that is, the subdirectories are not
> really independent "modules" that can be built independently and
> oblivious to each other), re-organize your build system to stop
> using makefile recursion.  For more background and rationales, see
> Peter Miller's excellent paper "Recursive Make Considered Harmful":
> <>
> See also the old similar issue:
> <>
> (Sorry for the overly curt reply, but time is what it is these
> days).

The problem I've had is that the info above does a great job of saying
"recursive Make can be a problem" but I haven't found anything to help
me make a useful non-recursive Make system.

Non-recursive make systems can be a problem too. Anything can be a problem, if it's not used properly. For any given tool there is a right way, and a wrong way to use it.

And once codebase crosses some threshold, having one, flat Makefile just does not work. I count 81's in gcc's svn tree. Even if someone comes up with one flat Makefile to replace all of them, I'd be shocked if the end result is unquestionably superior.

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