On 12-04-12 05:26 PM, Paul Smith wrote:
On Thu, 2012-04-12 at 16:01 -0400, Martin d'Anjou wrote:
Here is the makefile:
.SECONDEXPANSION:
all: $$(shell find . \( -name "*.swp" \))
echo $<
Did this used to work? I'd be surprised if did; if so it was probably a
bug in the old version of make.
Yes, it works in 3.81, and I use it quite a bit actually, to create
conditional pre-requisites.
You need to be sure that make knows where the variable ends, so that
requires quoting the end paren at least from make, AND you need to quote
the parens to the shell as well.
Does it work if you just switch to the alternative delimiters:
all: $${shell find . \( name "*.swp" \)}
No luck. It still fails the same way with the curly-braces.
What about if you put the command in a variable?
find := find . \( name "*.swp" \)
all: $$(shell $$(find))
Bingo! This solution works... for this small example... however, when I
go back to my full-scale makefile, I run into a memory leak. I will do a
separate post.
Thanks,
Martin
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