On Tue, 2007-08-14 at 22:59 -0500, David A. Greene wrote:
> define some_func
>
> target: $$($(1))
> echo '$$' > $$@
> endef
>
> my_func = $(eval $(call some_func,$(1)))
You have to deal with escaping "$". First, the call will evaluate
some_func, so that will remove one "level" of escaping, leaving you
with:
target: $(xxxx)
echo '$' > $@
Then when the command script itself is evaluated it will treat $' as a
variable reference and expand it, which causes the problem you've seen.
You need to escape the "$" here both for the call AND for the command
script eval, which means you need a double-escape, which means you need
four "$"'s:
define some_func
target: $$($(1))
echo '$$$$' > $$@
endef
my_func = $(eval $(call some_func,$(1)))
Now after the call you have:
target: $(xxxx)
echo '$$' > $@
which is what you want.
--
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Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at:
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"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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