[U-Boot] [PATCH] punt unused clean/distclean targets

Mike Frysinger vapier at gentoo.org
Mon Sep 19 16:28:41 CEST 2011


On Monday, September 19, 2011 02:54:35 Wolfgang Denk wrote:
> Mike Frysinger wrote:
> > if it wasn't clear in my last e-mail, i want to move in the direction of
> > .mk files that the top level would include them and thus all the
> > specific cruft would be kept there
> 
> Why should we do that?
> 
> Having all build rules in a single, huge Makefile does not sound like
> something that is desirable (and in this context it does not make any
> difference if the file is actually a concatenation of all these build
> rules, or if it's hidden in a set of [probably even nested] includes).
> 
> I'm still a big friend of organizing complex stuff in small,
> hierarchical structured pieces, so I have to u nderstand it only a
> small bit at a time.
> 
> Yes, running a number of nested makes may have some performance
> penalty.  But frankly: I care a ship about that when I can have the
> sofware design simpler and easier to maintain.

i dont think my proposal will be more complex.  however, i do think copying & 
pasting almost the same exact lines over and over across literally hundreds of 
Makefile's is a broken design.

> > after all, the list of things to clean should be obvious once we have
> > more kbuild style system: if it's listed as a file to build, then it
> > should get cleaned.
> 
> Keep in mind that you said yourslef we always want to remove _all_
> build results - this includes evne those not "listed as a file to
> buil" for a specific configuration setting.

as i mentioned in another e-mail, you do get access to the complete list 
regardless of config.  COBJS-$(FOO) evaluates to one of two lists: $(COBJS-y) 
or $(COBJS-).
-mike
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