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Date:	Sun, 31 Jul 2016 05:09:54 +0200 (CEST)
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Subject:	Re: [geda-user] OT: gnu make
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On Sat, 30 Jul 2016, gene glick (geneglick AT optonline DOT net) [via geda-user AT delorie DOT com] wrote:

>that's precisely what I tried, but it's not working.
>
>Using DJ's example, if foo.obj is missing, make builds it correctly. Then if
>I 'touch' bar.inc, it doesn't rebuild.
>
>I'm using gnu make 3.81 on windows for this - but I don't windows vs linux
>version matters, does it?


The complete minimal example I've just tried:

------------------------
all: foo.obj

%.obj: %.asm
 	echo "compiled from $<" >$@

foo.obj: foo.asm foo.inc
------------------------
igor2 AT Awake1:/tmp/gnumake$ make
echo "compiled from foo.asm" >foo.obj
igor2 AT Awake1:/tmp/gnumake$ make
make: Nothing to be done for 'all'.
igor2 AT Awake1:/tmp/gnumake$ touch foo.inc
igor2 AT Awake1:/tmp/gnumake$ make
echo "compiled from foo.asm" >foo.obj
igor2 AT Awake1:/tmp/gnumake$ touch foo.asm
igor2 AT Awake1:/tmp/gnumake$ make
echo "compiled from foo.asm" >foo.obj
igor2 AT Awake1:/tmp/gnumake$ make
make: Nothing to be done for 'all'.
igor2 AT Awake1:/tmp/gnumake$
------------------------

Works as expected. I have 4.0, but this feature is in for ages. Seen 
GNU make working on windows too, although there are always room for 
cryptic incompatibilities.

Maybe some other part of your Makefile keeps it from executing this rule?

Regards,

Igor2

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